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(F)=78+39F
We move all terms to the left:
(F)-(78+39F)=0
We add all the numbers together, and all the variables
F-(39F+78)=0
We get rid of parentheses
F-39F-78=0
We add all the numbers together, and all the variables
-38F-78=0
We move all terms containing F to the left, all other terms to the right
-38F=78
F=78/-38
F=-2+1/19
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