F(x)=8-7x

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Solution for F(x)=8-7x equation: 



(F)=8-7F

We move all terms to the left:

(F)-(8-7F)=0

We add all the numbers together, and all the variables

F-(-7F+8)=0

We get rid of parentheses

F+7F-8=0

We add all the numbers together, and all the variables

8F-8=0

We move all terms containing F to the left, all other terms to the right

8F=8

F=8/8

F=1

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