The total cost to fix your bike is $45 the parts cost $10 and the labor cost seven dollars per hour

The total cost to fix your bike is $45 the parts cost $10 and the labor cost seven dollars per hour how many hours were there:

Set up a cost function where h is the number of hours:
7h + 10 = 45

To solve for h, we type this equation into our search engine and we get:
h = 5