John called a plumber to fix a leak in his bathroom. The plumber charged $30 to come to the house and $25 an hour to fix the leak. If the final bill was $105, how many hours was the plumber at John's house?

Question

AP · Answer

Set up an equation in which 'x' represents the number of hours the plumber took to fix John's house PLUS the $30 fee, with the total cost equal to $105. @Farrar

Farrar · Answer

Thank you for your prompt response. I set up an equation as 25x +30 = 105. I solved the equation and my answer is the plumber was at John's house for 3 hours.

AP · Answer

Perfect. Excellent work. (: