Question

The bill for the repair of a computer was $179. The cost for parts was $44, and the labor charge was $45 per hour. How many hours did it take to repair the computer?

1. Define the variable (What do we not know?):


2. Write the equation .


3. Solve the equation.

Answer 1

1. x is the amount of hours it took to repair the computer

2. 44+45x=$179

3. Around 3 hours

Explanation:

44+45x=$179

Subtract 44 on both sides:

44-44+45x=179-42

45x=137

Divide 45 on both sides:

45x/45=137/45

x=3.044444444

Around 3 hours.