The total cost C (in dollars) to participate in a ski club is given by the literal equation C=85x+60, where x is the number of ski trips you take.
A:
C=85x+60
c-60=85x
(c-60)/85 = x
B:
315=85x+60
255=85x
3 = x
485 = 85x+60
425=85x
5=x