F(3)=7x-15

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Solution for F(3)=7x-15 equation: 



(3)=7F-15

We move all terms to the left:

(3)-(7F-15)=0

We get rid of parentheses

-7F+15+3=0

We add all the numbers together, and all the variables

-7F+18=0

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

-7F=-18

F=-18/-7

F=2+4/7

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