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(F)=-11F-3
We move all terms to the left:
(F)-(-11F-3)=0
We get rid of parentheses
F+11F+3=0
We add all the numbers together, and all the variables
12F+3=0
We move all terms containing F to the left, all other terms to the right
12F=-3
F=-3/12
F=-1/4
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