F(x)=x-x-7

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Solution for F(x)=x-x-7 equation:



(F)=F-F-7
We move all terms to the left:
(F)-(F-F-7)=0
We add all the numbers together, and all the variables
F-(-7)=0
We add all the numbers together, and all the variables
F+7=0
We move all terms containing F to the left, all other terms to the right
F=-7

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