F6=7x-15

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Solution for F6=7x-15 equation: 



6=7F-15

We move all terms to the left:

6-(7F-15)=0

We get rid of parentheses

-7F+15+6=0

We add all the numbers together, and all the variables

-7F+21=0

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

-7F=-21

F=-21/-7

F=+3

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