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(F)=0.5F+3
We move all terms to the left:
(F)-(0.5F+3)=0
We get rid of parentheses
F-0.5F-3=0
We add all the numbers together, and all the variables
0.5F-3=0
We move all terms containing F to the left, all other terms to the right
0.5F=3
F=3/0.5
F=6
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