3) Solve the system of linear equations using elimination by addition or subtraction. (-m +n = 9 m +n = 5

Q: Solve x + 4y = 8 - x - 9y = 18 by using Systems of elimination

A: Given: x+4y=8 ......................eq.1-x-9y=18 .....................eq.2

Q: Write the coordinates of the vertices after a translation 1 unit right and 2 units up J(-4,3)-> J(…

A: We can translate the given point by indicating the point on the coordinate plane.

Q: Х1 + X2 + 4 х; + 4 X4 — 1 -2 х1 —2 х2 + 4 xз — 2 х4 — 2 2 X + 2 X2 + Xз + X4 = 2 -6 X1 + 2 х2 + 2 хз…

A:

Q: Write a system of linear equations that has the order pair (−3,7) as a solution.

A: Write a system of linear equations that has the order pair  (a,b) is y=(b/a)x

Q: Indicate the solution to the system of linear equations by typing your solution in the boxes…

A: We want to find value of x and y

Q: Write and solve a system of two linear equations to determine the rate of the boat in calm water and…

A:

Q: Dimensions of a Rectangle The perimeter of a rectangle is 52 inches. The length of the rectangle is…

A: The given system of equation is 2l+2w=521l=w+42. Substitute l=w+4 in 2l+2w=52 and simplify as…

Q: Describe and correct the error in solving the system of linear equations by substitution by typing…

A: We will use the method of substitution to solve the given system of linear equations.

Q: Chapter 5: Solving Systems of Linear Equations by Graphing > Section Exercises 5 y = -+7 y = x+1…

A:

Q: Write a system of linear equations with solution set {(4, −3)}.

A: To find the system of linear equations having the solution set (4,-3), this can be think of the two…

Q: Solve the system of linear equations: x-y+z=-2 x+2y-z=2 2y+3z=7

A: x - y + z = -2x + 2y - z = 22y + 3z = 7The system of equation written in matrix formAx =…