Question

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. Solve the equation for x.

Answer 1

`x=(c-60)/85`

Explanation:

we have

`c=85x+60`

Solve for x

That means -----> isolate the variable x

subtract 60 both sides

`c-60=85x+60-60\\c-60=85x`

Divide by 85 both sides

`(c-60)/85=85x/85\\(c-60)/85=x`

Rewrite

`x=(c-60)/85`