Question

solve each system by substitution or elimination.

1. y=2x+8
y=3x-1

2. 2x-y=2
2x-2y=4

3. -x+y=2
2x+y=-1

Answer 1

Never put your question like that, it confuses the person helping you.
(1).x=20 y=48 (2).y=-41 x=-39/2 (3).y=1 x=-1