The correct equation to solve for the number of hours the plumber worked on the house call is:
D. 435=50x+70
A plumber charges $50 for every house call and an additional $70 for each hour of work. For one house call yesterday, the plumber earned $435.
Which equation can be solved to find the number of hours the plumber worked on the house call?
A. 435=7x+50
B. 435=(50+70)x
C. 435=(x+70)+50
D. 435=50x+70
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