F(x)=15+7x

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Solution for F(x)=15+7x equation: 



(F)=15+7F

We move all terms to the left:

(F)-(15+7F)=0

We add all the numbers together, and all the variables

F-(7F+15)=0

We get rid of parentheses

F-7F-15=0

We add all the numbers together, and all the variables

-6F-15=0

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

-6F=15

F=15/-6

F=-2+1/2

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