-8x+8y=8
-8x-8y=40
solve by elimination (a fancy way to say add them together so one of the factors cancel or eliminate)
-8x+8y=8
-8x-8y=40 the y's are opposite
-16y = 48
/-16 /-16 divide by -16
y = - 3
now I know y is -3
-8x + 8(-3) = 8
-8x - 24 = 8
+24 +24
-8x = 32
x = -4
answer is (-4, -3)