F(-2)=7x+20

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Solution for F(-2)=7x+20 equation: 



(-2)=7F+20

We move all terms to the left:

(-2)-(7F+20)=0

We add all the numbers together, and all the variables

-(7F+20)-2=0

We get rid of parentheses

-7F-20-2=0

We add all the numbers together, and all the variables

-7F-22=0

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

-7F=22

F=22/-7

F=-3+1/7

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