Question

C=85x+60 solve for x

Answer 1

To solve for x:

C=85x+60                  subtract 60 from both sides

C - 60=85x+60 - 60

C - 60 = 85x              now divide by 85 both sides

(C - 60)/85 = x


So we can write:
$x= \frac{C-60}{85}$

I hope that helps!