Question

The graphs of two linear equations are shown.

y = 3x – 3
y= 2x - 8
Which is the solution of this system of equations?

Answer 1

y = -18
x = -5

(y = 3x -3)2
(y = 2x-8)-3

2y = 6x-6
-3y= -6x+24
———————
-y = 18
y = -18

-18 = 3x - 3
-15 = 3x
-5 = x