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^-1(F)=7F-13
We move all terms to the left:
^-1(F)-(7F-13)=0
We add all the numbers together, and all the variables
-1F-(7F-13)=0
We get rid of parentheses
-1F-7F+13=0
We add all the numbers together, and all the variables
-8F+13=0
We move all terms containing F to the left, all other terms to the right
-8F=-13
F=-13/-8
F=1+5/8
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