Solve using matrices: [3x + y = 5 x + 4y = 9. 3. 15 R1 + R2 1 49 4 9 [3 5. -3R + R2 [1 4 91 [1 4 -> -11 -22 1 x + 4y = 9 y = 2. When y = 2, x + 4.2 = 9, so x = 1. The solution is (1, 2) and the solution set is {(1, 2)}.

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
icon
Related questions
Question
Solve using matrices:
[3x + y = 5
x + 4y = 9.
3.
15
R1 + R2
1
49
4 9
[3
5.
-3R + R2
[1
4
91
[1
4
->
-11
-22
1
x + 4y = 9
y = 2.
When y = 2, x + 4.2 = 9, so x = 1. The solution is (1, 2)
and the solution set is {(1, 2)}.
Transcribed Image Text:Solve using matrices: [3x + y = 5 x + 4y = 9. 3. 15 R1 + R2 1 49 4 9 [3 5. -3R + R2 [1 4 91 [1 4 -> -11 -22 1 x + 4y = 9 y = 2. When y = 2, x + 4.2 = 9, so x = 1. The solution is (1, 2) and the solution set is {(1, 2)}.
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
Algebra
ISBN:
9780134463216
Author:
Robert F. Blitzer
Publisher:
PEARSON
Contemporary Abstract Algebra
Contemporary Abstract Algebra
Algebra
ISBN:
9781305657960
Author:
Joseph Gallian
Publisher:
Cengage Learning
Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Algebra And Trigonometry (11th Edition)
Algebra And Trigonometry (11th Edition)
Algebra
ISBN:
9780135163078
Author:
Michael Sullivan
Publisher:
PEARSON
Introduction to Linear Algebra, Fifth Edition
Introduction to Linear Algebra, Fifth Edition
Algebra
ISBN:
9780980232776
Author:
Gilbert Strang
Publisher:
Wellesley-Cambridge Press
College Algebra (Collegiate Math)
College Algebra (Collegiate Math)
Algebra
ISBN:
9780077836344
Author:
Julie Miller, Donna Gerken
Publisher:
McGraw-Hill Education