The cost of the labor per hour is 115 hours.
The equation is going to be:
4.25x + 167 = 655.75
your x is going to be:115
The duration was 4.25 hours.
The parts cost 167.
Cost in full: 655.75
so the price per hour is x.
As a result, when you write your equation, the total number of hours (multiplied by the cost per hour) will be added to the cost of the parts, and the sum of these two amounts will be your total cost.
In order to solve the problem, you must deduct the cost of each component from the total cost. This should give you the following result: 4.25x = 488.75
After that, divide 4.25 by each side as you normally would.
The cost of labor per hour follows. 115
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