Question

I need the answers for those IMMEDIATELY ! Thank you!

Answer 1

Hope this helped.

Explanation:

2:x=2y+20 y=1/2x-10

4:x=4/5y+15/5 y=5/4x-4

6:x=-2y+10 y=-1/2x+5

8:x=-7/3y+100/3 y=-3/7x+100/7