Question

Make x the subject of

Answer 1

5y=2x-12
5y+12=2x
x=5/2y+6

Answer 2

x=2.5y+30

Explanation:

lets add 12 for a start

y+12=2/5x

x everything by 5

5y+60=2x

divide by 2

2.5y+30=x

hope it helps