Question

*Urgent*


Use a matrix to find the solution to the system of equations.

X-5y = -5
-4x-2y = 20

A. (-5,-5)
B. (-5,0)
C. (0,5)
D. (-5,5)

Answer 1

Answer:

B. (-5,0)

Step-by-step explanation:

-2(X-5Y=-5)            -5(-4X-2Y=20)

-2X-10Y=10    -subtract-     20X-10Y=-100  = -22X=110

                                                                     _________

                                                                           -22X

                                   X=-5

Now substitute x with -5 to find Y which makes y=0