EBK ALGEBRA AND TRIGONOMETRY
4th Edition
ISBN: 8220100548512
Author: Watson
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 10.1, Problem 43E
21-50 Solving a system of linear equations Solve the system, or show that it has no solution. If the system has infinitely many solutions, express them in the ordered pair given in Example 6.
A Linear System with infinitely Many Solutions
Solve the system.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
3. Write a system of linear equations in slope intercept form that has exactly one solution at
the point (3, 4), such that one line has positive slope (but not 1) and the other line has
negative slope (but not "1).
Also write your system of equations with both
equations written in standard form with out
any fractions
8-
7
8
5
4
3
-2-
+
-8-7-6-5-4-3-2-1
1 2
3
-1
2
-
°
4
-5
-
-8
2. Write a system of linear equations in slope-intercept form has exactly one solution at the
point (3, 4), such that both lines have negative slope (but neither one has slope of 1).
Also write your system of equations with
both equations written in standard form
without any fractions.
B
0
5
4
3
-2
1
-8-7-6-5-4-3-2 -1
12
3
-1
2
-3
-5
6
-7
-8
4. Write a system of linear equations in slope-intercept form that has no solution, such that
(3, 4), and (3,8) are solutions to the first equation, and (0, 4) is a solution to the second
equation.
Also write your system of equations with both
equations written in standard form with out any
fractions
B
0
5
4
3
-2
+
-8-7-6-5-4-3-2
-1
|-
1 2 3
-1
2
-3
4
-5
6
-7
Chapter 10 Solutions
EBK ALGEBRA AND TRIGONOMETRY
Ch. 10.1 - CONCEPTS The system of equations {2x+3y=75xy=9 is...Ch. 10.1 - CONCEPTS A system of equations in two variables...Ch. 10.1 - Prob. 3ECh. 10.1 - Prob. 4ECh. 10.1 - Prob. 5ECh. 10.1 - Prob. 6ECh. 10.1 - SKILLS 58 Substitution Method Use the...Ch. 10.1 - Prob. 8ECh. 10.1 - Prob. 9ECh. 10.1 - Prob. 10E
Ch. 10.1 - Prob. 11ECh. 10.1 - Prob. 12ECh. 10.1 - SKILLS 1314 Graphical MethodTwo equations and...Ch. 10.1 - Prob. 14ECh. 10.1 - Prob. 15ECh. 10.1 - Prob. 16ECh. 10.1 - Prob. 17ECh. 10.1 - Prob. 18ECh. 10.1 - SKILLS 1520 Number of Solutions Determined...Ch. 10.1 - Prob. 20ECh. 10.1 - Prob. 21ECh. 10.1 - Prob. 22ECh. 10.1 - Prob. 23ECh. 10.1 - Prob. 24ECh. 10.1 - 2150 Solving a System of Equations Solve the...Ch. 10.1 - Prob. 26ECh. 10.1 - Prob. 27ECh. 10.1 - Prob. 28ECh. 10.1 - Prob. 29ECh. 10.1 - Prob. 30ECh. 10.1 - 2150 Solving a System of Equations Solve the...Ch. 10.1 - 2150 Solving a System of Equations Solve the...Ch. 10.1 - Prob. 33ECh. 10.1 - Prob. 34ECh. 10.1 - Prob. 35ECh. 10.1 - Prob. 36ECh. 10.1 - 21-50Solving a system of linear equationsSolve the...Ch. 10.1 - 21-50Solving a system of linear equationsSolve the...Ch. 10.1 - Prob. 39ECh. 10.1 - Prob. 40ECh. 10.1 - Prob. 41ECh. 10.1 - Prob. 42ECh. 10.1 - 21-50Solving a system of linear equationsSolve the...Ch. 10.1 - Prob. 44ECh. 10.1 - Prob. 45ECh. 10.1 - Prob. 46ECh. 10.1 - Prob. 47ECh. 10.1 - Prob. 48ECh. 10.1 - 2150 Solving a System of Equations Solve the...Ch. 10.1 - Prob. 50ECh. 10.1 - Prob. 51ECh. 10.1 - Prob. 52ECh. 10.1 - Prob. 53ECh. 10.1 - Prob. 54ECh. 10.1 - SKILLS Plus 55-58 Solving a General System of...Ch. 10.1 - Prob. 56ECh. 10.1 - Prob. 57ECh. 10.1 - Prob. 58ECh. 10.1 - Prob. 59ECh. 10.1 - Prob. 60ECh. 10.1 - APPLICATIONS Value of Coins A man has 14 coins in...Ch. 10.1 - Prob. 62ECh. 10.1 - Prob. 63ECh. 10.1 - Prob. 64ECh. 10.1 - Prob. 65ECh. 10.1 - Prob. 66ECh. 10.1 - Nutrition A researcher performs an experiment to...Ch. 10.1 - Prob. 68ECh. 10.1 - Prob. 69ECh. 10.1 - Mixture problem A biologist has two brine...Ch. 10.1 - Prob. 71ECh. 10.1 - Prob. 72ECh. 10.1 - APPLICATIONS Distance, Speed, and Time John and...Ch. 10.1 - Prob. 74ECh. 10.1 - Prob. 75ECh. 10.1 - Prob. 76ECh. 10.1 - Prob. 77ECh. 10.2 - 1-2these exercises refer to the following system:...Ch. 10.2 - Prob. 2ECh. 10.2 - Prob. 3ECh. 10.2 - Prob. 4ECh. 10.2 - Prob. 5ECh. 10.2 - Prob. 6ECh. 10.2 - SKILLS 7-12Triangular SystemsUse back-substitution...Ch. 10.2 - Prob. 8ECh. 10.2 - Prob. 9ECh. 10.2 - Prob. 10ECh. 10.2 - Prob. 11ECh. 10.2 - Prob. 12ECh. 10.2 - SKILLS 13-16Eliminating a VariablePerform an...Ch. 10.2 - Prob. 14ECh. 10.2 - Prob. 15ECh. 10.2 - Prob. 16ECh. 10.2 - Prob. 17ECh. 10.2 - Prob. 18ECh. 10.2 - SKILLS 17-38Solving a System of Equations in Three...Ch. 10.2 - Prob. 20ECh. 10.2 - Prob. 21ECh. 10.2 - SKILLS 17-38Solving a System of Equations in Three...Ch. 10.2 - Prob. 23ECh. 10.2 - Prob. 24ECh. 10.2 - SKILLS 17-38Solving a System of Equations in Three...Ch. 10.2 - Prob. 26ECh. 10.2 - Prob. 27ECh. 10.2 - Prob. 28ECh. 10.2 - Prob. 29ECh. 10.2 - Prob. 30ECh. 10.2 - SKILLS 17-38Solving a System of Equations in Three...Ch. 10.2 - Prob. 32ECh. 10.2 - Prob. 33ECh. 10.2 - Prob. 34ECh. 10.2 - Prob. 35ECh. 10.2 - Prob. 36ECh. 10.2 - SKILLS 17-38Solving a System of Equations in Three...Ch. 10.2 - Prob. 38ECh. 10.2 - APPLICATIONS Financial PlanningMark has 100,000 to...Ch. 10.2 - Prob. 40ECh. 10.2 - APPLICATIONS AgricultureA farmer has 1200 acres of...Ch. 10.2 - Gas Station A gas station sells three types of...Ch. 10.2 - Nutrition A biologist is performing an experiment...Ch. 10.2 - Prob. 44ECh. 10.2 - APPLICATIONS Juice Blends The Juice Company offers...Ch. 10.2 - Prob. 46ECh. 10.2 - APPLICATIONS Stock Portfolio An investor owns...Ch. 10.2 - Electricity By using Kirchhoffs Laws, it can be...Ch. 10.2 - Prob. 49ECh. 10.3 - Prob. 1ECh. 10.3 - Prob. 2ECh. 10.3 - Prob. 3ECh. 10.3 - Prob. 4ECh. 10.3 - Prob. 5ECh. 10.3 - Prob. 6ECh. 10.3 - Prob. 7ECh. 10.3 - Prob. 8ECh. 10.3 - Prob. 9ECh. 10.3 - Prob. 10ECh. 10.3 - Prob. 11ECh. 10.3 - Prob. 12ECh. 10.3 - Prob. 13ECh. 10.3 - Prob. 14ECh. 10.3 - Prob. 15ECh. 10.3 - Prob. 16ECh. 10.3 - Prob. 17ECh. 10.3 - Prob. 18ECh. 10.3 - Prob. 19ECh. 10.3 - Prob. 20ECh. 10.3 - Prob. 21ECh. 10.3 - Prob. 22ECh. 10.3 - Prob. 23ECh. 10.3 - Prob. 24ECh. 10.3 - Prob. 25ECh. 10.3 - Prob. 26ECh. 10.3 - Prob. 27ECh. 10.3 - Prob. 28ECh. 10.3 - Prob. 29ECh. 10.3 - Prob. 30ECh. 10.3 - Prob. 31ECh. 10.3 - Prob. 32ECh. 10.3 - Prob. 33ECh. 10.3 - Prob. 34ECh. 10.3 - Prob. 35ECh. 10.3 - Prob. 36ECh. 10.3 - Prob. 37ECh. 10.3 - Prob. 38ECh. 10.3 - Prob. 39ECh. 10.3 - Prob. 40ECh. 10.3 - Prob. 41ECh. 10.3 - Prob. 42ECh. 10.3 - Prob. 43ECh. 10.3 - Prob. 44ECh. 10.3 - Prob. 45ECh. 10.3 - Prob. 46ECh. 10.3 - Prob. 47ECh. 10.3 - Prob. 48ECh. 10.4 - CONCEPTS 1-2The system of equations {2yx2=0yx=4 is...Ch. 10.4 - Prob. 2ECh. 10.4 - Prob. 3ECh. 10.4 - Prob. 4ECh. 10.4 - Prob. 5ECh. 10.4 - Prob. 6ECh. 10.4 - SKILLS 3-8Substitution MethodUse the substitution...Ch. 10.4 - Prob. 8ECh. 10.4 - Prob. 9ECh. 10.4 - Prob. 10ECh. 10.4 - Prob. 11ECh. 10.4 - SKILLS 9-14Elimination MethodUse the elimination...Ch. 10.4 - SKILLS 9-14Elimination MethodUse the elimination...Ch. 10.4 - Prob. 14ECh. 10.4 - Prob. 15ECh. 10.4 - SKILLS 15-18Finding Intersection Points...Ch. 10.4 - Prob. 17ECh. 10.4 - Prob. 18ECh. 10.4 - SKILLS 19-32Solving Nonlinear SystemsFind all...Ch. 10.4 - Prob. 20ECh. 10.4 - Prob. 21ECh. 10.4 - Prob. 22ECh. 10.4 - Prob. 23ECh. 10.4 - Prob. 24ECh. 10.4 - SKILLS 19-32Solving Nonlinear SystemsFind all...Ch. 10.4 - SKILLS 19-32Solving Nonlinear SystemsFind all...Ch. 10.4 - Prob. 27ECh. 10.4 - Prob. 28ECh. 10.4 - Prob. 29ECh. 10.4 - Prob. 30ECh. 10.4 - SKILLS 19-32Solving Nonlinear SystemsFind all...Ch. 10.4 - Prob. 32ECh. 10.4 - Prob. 33ECh. 10.4 - Prob. 34ECh. 10.4 - Prob. 35ECh. 10.4 - Prob. 36ECh. 10.4 - SKILLS 33-40Graphical MethodUse the graphical...Ch. 10.4 - Prob. 38ECh. 10.4 - Prob. 39ECh. 10.4 - Prob. 40ECh. 10.4 - Prob. 41ECh. 10.4 - Prob. 42ECh. 10.4 - SKILLS Plus 41-44Some Tricker SystemsFollow the...Ch. 10.4 - Prob. 44ECh. 10.4 - Prob. 45ECh. 10.4 - Prob. 46ECh. 10.4 - Prob. 47ECh. 10.4 - Prob. 48ECh. 10.4 - APPLICATIONS Flight of a RocketA hill is inclined...Ch. 10.4 - Prob. 50ECh. 10.4 - Global Positioning System GPS The Global...Ch. 10.4 - Prob. 52ECh. 10.5 - Prob. 1ECh. 10.5 - Prob. 2ECh. 10.5 - Prob. 3ECh. 10.5 - Prob. 4ECh. 10.5 - Prob. 5ECh. 10.5 - Prob. 6ECh. 10.5 - Prob. 7ECh. 10.5 - Prob. 8ECh. 10.5 - Prob. 9ECh. 10.5 - Prob. 10ECh. 10.5 - Prob. 11ECh. 10.5 - Prob. 12ECh. 10.5 - Prob. 13ECh. 10.5 - Prob. 14ECh. 10.5 - Prob. 15ECh. 10.5 - Prob. 16ECh. 10.5 - Prob. 17ECh. 10.5 - Prob. 18ECh. 10.5 - Prob. 19ECh. 10.5 - Prob. 20ECh. 10.5 - Prob. 21ECh. 10.5 - Prob. 22ECh. 10.5 - Prob. 23ECh. 10.5 - Prob. 24ECh. 10.5 - Prob. 25ECh. 10.5 - Prob. 26ECh. 10.5 - Prob. 27ECh. 10.5 - Prob. 28ECh. 10.5 - Prob. 29ECh. 10.5 - Prob. 30ECh. 10.5 - Prob. 31ECh. 10.5 - Prob. 32ECh. 10.5 - Prob. 33ECh. 10.5 - Prob. 34ECh. 10.5 - Prob. 35ECh. 10.5 - Prob. 36ECh. 10.5 - Prob. 37ECh. 10.5 - Prob. 38ECh. 10.5 - Prob. 39ECh. 10.5 - Prob. 40ECh. 10.5 - Prob. 41ECh. 10.5 - Prob. 42ECh. 10.5 - Prob. 43ECh. 10.5 - Prob. 44ECh. 10.5 - Prob. 45ECh. 10.5 - Prob. 46ECh. 10.5 - Prob. 47ECh. 10.5 - Prob. 48ECh. 10.5 - Prob. 49ECh. 10.5 - Prob. 50ECh. 10.5 - Prob. 51ECh. 10.5 - Prob. 52ECh. 10.5 - Prob. 53ECh. 10.5 - Prob. 54ECh. 10.5 - Prob. 55ECh. 10.5 - Prob. 56ECh. 10.5 - Prob. 57ECh. 10.5 - Prob. 58ECh. 10.5 - Prob. 59ECh. 10.5 - Prob. 60ECh. 10.5 - Prob. 61ECh. 10.5 - Prob. 62ECh. 10.5 - Prob. 63ECh. 10.5 - Prob. 64ECh. 10.5 - Prob. 65ECh. 10.5 - Prob. 66ECh. 10.5 - Prob. 67ECh. 10.5 - Prob. 68ECh. 10.5 - Prob. 69ECh. 10.5 - Prob. 70ECh. 10.5 - Prob. 71ECh. 10.5 - Prob. 72ECh. 10.5 - APPLICATIONS Coffee BlendsA coffee merchant sells...Ch. 10.5 - Prob. 74ECh. 10.5 - Prob. 75ECh. 10.CR - Prob. 1CCCh. 10.CR - Prob. 2CCCh. 10.CR - What is a system of linear equations in the...Ch. 10.CR - For a system of two linear equations in two...Ch. 10.CR - What operations can be performed on a linear...Ch. 10.CR - aExplain how Gaussian elimination works. bUse...Ch. 10.CR - Prob. 7CCCh. 10.CR - Prob. 8CCCh. 10.CR - Prob. 9CCCh. 10.CR - Prob. 1ECh. 10.CR - Prob. 2ECh. 10.CR - Prob. 3ECh. 10.CR - Prob. 4ECh. 10.CR - Prob. 5ECh. 10.CR - Prob. 6ECh. 10.CR - Prob. 7ECh. 10.CR - Prob. 8ECh. 10.CR - Prob. 9ECh. 10.CR - Prob. 10ECh. 10.CR - Prob. 11ECh. 10.CR - Prob. 12ECh. 10.CR - Prob. 13ECh. 10.CR - Prob. 14ECh. 10.CR - Prob. 15ECh. 10.CR - Prob. 16ECh. 10.CR - Prob. 17ECh. 10.CR - Prob. 18ECh. 10.CR - Prob. 19ECh. 10.CR - Prob. 20ECh. 10.CR - Prob. 21ECh. 10.CR - Prob. 22ECh. 10.CR - Prob. 23ECh. 10.CR - Prob. 24ECh. 10.CR - Prob. 25ECh. 10.CR - Prob. 26ECh. 10.CR - Prob. 27ECh. 10.CR - Prob. 28ECh. 10.CR - Prob. 29ECh. 10.CR - Prob. 30ECh. 10.CR - Prob. 31ECh. 10.CR - Prob. 32ECh. 10.CR - Prob. 33ECh. 10.CR - Prob. 34ECh. 10.CR - Prob. 35ECh. 10.CR - Prob. 36ECh. 10.CR - Prob. 37ECh. 10.CR - Prob. 38ECh. 10.CR - Prob. 39ECh. 10.CR - Prob. 40ECh. 10.CR - Prob. 41ECh. 10.CR - Prob. 42ECh. 10.CR - Prob. 43ECh. 10.CR - Prob. 44ECh. 10.CR - Prob. 45ECh. 10.CR - Prob. 46ECh. 10.CR - Prob. 47ECh. 10.CR - Prob. 48ECh. 10.CR - Prob. 49ECh. 10.CR - Prob. 50ECh. 10.CR - Prob. 51ECh. 10.CR - Prob. 52ECh. 10.CR - Prob. 53ECh. 10.CR - Prob. 54ECh. 10.CR - Prob. 55ECh. 10.CR - Prob. 56ECh. 10.CR - Prob. 57ECh. 10.CR - Prob. 58ECh. 10.CT - Prob. 1CTCh. 10.CT - Prob. 2CTCh. 10.CT - Prob. 3CTCh. 10.CT - Prob. 4CTCh. 10.CT - Prob. 5CTCh. 10.CT - Prob. 6CTCh. 10.CT - Prob. 7CTCh. 10.CT - Prob. 8CTCh. 10.CT - In 212h an airplane travels 600km against the...Ch. 10.CT - Prob. 10CTCh. 10.CT - Prob. 11CTCh. 10.CT - Prob. 12CTCh. 10.CT - Prob. 13CTCh. 10.CT - Prob. 14CTCh. 10.CT - Prob. 15CTCh. 10.CT - Prob. 16CTCh. 10.FOM - PROBLEMS 1-4Find the maximum and minimum values of...Ch. 10.FOM - 1-4 Find the maximum and the minimum values of the...Ch. 10.FOM - 1-4 Find the maximum and minimum values of the...Ch. 10.FOM - Prob. 4PCh. 10.FOM - Making FurnitureA furniture manufacturer makes...Ch. 10.FOM - A Housing DevelopmentA housing contractor has...Ch. 10.FOM - Prob. 7PCh. 10.FOM - Manufacturing Calculators A manufacturer of...Ch. 10.FOM - Shipping TelevisionsAn electronics discount chain...Ch. 10.FOM - Prob. 10PCh. 10.FOM - Prob. 11PCh. 10.FOM - Prob. 12PCh. 10.FOM - Investing in BondsA woman wishes to invest 12,000...Ch. 10.FOM - Prob. 14PCh. 10.FOM - Business StrategyA small software company...Ch. 10.FOM - Feasible RegionAll parts of this problem refer to...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.Similar questions
- Show how you can solve the system of equations by manipulating the algebra tiles while maintaining the balances. On this side of the page, use the addition (elimination) method. Keep track of what you did at each step by writing down the corresponding equivalent equations, as well as what you did to go from one equation to the next. 1. x + 2y = 5 x-2y=1 2. 2x+y=2 x-2y= 6arrow_forwarde) x24 1) Which of these are equivalent to x³? For each expression that is equivalent to x², prove it by using the definition of exponents. For each that is not equivalent to x³, give an example using a specific value for x that shows that it represents a different number. a) (x5) d) f) 10-2 b) (x²) *|*arrow_forwardNow show how you can solve the system of equations by manipulating the algebra tiles while maintaining the balances, using the substitution method. Keep track of what you did at each step by writing down the corresponding equivalent equations, as well as what you did to go from one equation to the next. Δ 1. x + 2y = 5 x-2y=1 2. 2x + y = 2 x-2y= 6arrow_forward
- 1. Write a system of two linear equations in slope-intercept form that has exactly one solution at the point (3, 4), such that both lines have positive slope (but neither one has slope of 1) Also write your system of equations with both equations written in standard form without any fractions. 8- 7 8 5 4 3 -2- + -8-7-6-5-4-3-2-1 1 2 3 -1 2 - 4 -5 -7 -8arrow_forwardThe original idea for creating this applet comes from Steve Phelps' Graph the Line applet. Directions: 1) Examine the equation shown on the right side of the screen. 2) Reposition the 2 big points so that the line is the graph of the displayed equation. 3) Click the "Check Answer" checkbox to check. If you're correct, the app will inform you. If you're not, you'll know this as well. If you're not correct, keep trying until you position the gray line correctly. 4) After correctly graphing the line, click the "Generate New Line" button.arrow_forwardProblem 1 & 2 answers 1. One diagonal has 11 squares, then total square in total for two diagonal line is 11 + 11 - 1 = 21 . 2. Each part has 5 squares.(except middle)Multiply by 4: 5 × 4 = 20.Add the middle square: 20 + 1 = 21.arrow_forward
- 2. Now Figure out a different way you could determine how many squares there are in the figure, again without counting them all one-by-one. Briefly describe this other method:arrow_forward1. Without counting all of the squares one by one, determine how many squares there are in the figure shown. Briefly describe your method.arrow_forward54, and 68 e Problem (10 point. in standard form (a + bi): 2+i √√3-2i ksgiving Problem (2 ion to reveal Mr. Erdman's favoriarrow_forward
- 1 2 5. Let S = 0 0 statements is true? and consider the subset W = {A Є M22 | SA = AS}. Which one of the following A. W is not a subspace of M22 = 4 B. W is a subspace of M22, and dim W C. W is a subspace of M22, and dim W = 3 D. W is a subspace of M22, and dim W = 2 E. W is a subspace of M22, and dim W = 1 F. W is a subspace of M22, and dim W = 0arrow_forwardA tablet computer has a 1 inch border of plastic around the screen. What is the area of the plastic border?arrow_forwardPlease answer with the correct answer only for each question.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage
Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal Littell
College AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
Algebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
Algebra: Structure And Method, Book 1
Algebra
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:McDougal Littell
College Algebra
Algebra
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
UG/ linear equation in linear algebra; Author: The Gate Academy;https://www.youtube.com/watch?v=aN5ezoOXX5A;License: Standard YouTube License, CC-BY
System of Linear Equations-I; Author: IIT Roorkee July 2018;https://www.youtube.com/watch?v=HOXWRNuH3BE;License: Standard YouTube License, CC-BY