Solve each system of equations using matrices. Show all work on separate paper. x-2y+3= 9
-x+3y = -4
2x - 5y + 5z = 17

For x-2y+3= 9 the answer is X - 2y+3=9 and for -x+3y = -4 the answer is x- 3y-4=0 and for 2x - 5y + 5z = 17 the answer is X=17/2+5/2y-5/2z,yer,zer

Step-by-step explanation:

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )