Question

A mechanic charges $50 to inspect your heater, plus $80 per hour to work on it. You owe the mechanic a total of $310. Write and solve an equation to find the amount of time hh (in hours) the mechanic works on your heater.

Answer 1

80(h)+50=310
80h=310-50
80h=260
h=260/80
h=3.25

plug in h to the equation, you should get the answer 310. So H is 3.25

Answer 2

50+80h=310
the mechanic works on your heater for 3.25 hours.