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(12.50f+75)=250
We move all terms to the left:
(12.50f+75)-(250)=0
We get rid of parentheses
12.50f+75-250=0
We add all the numbers together, and all the variables
12.50f-175=0
We move all terms containing f to the left, all other terms to the right
12.50f=175
f=175/12.50
f=14
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