Step-by-step explanation:
x=-10 is ur answer try it!
Answer:
3.) {2x+2y=62; x+4y=70
x = 40
x = -3
Take the 3x away from the right side.
-5x-3x=-8x
-8x = -24
Divide both sides by 8.
-8x/8 = x
-24/8 = -3