F(x)=3x-5+4x

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Solution for F(x)=3x-5+4x equation: 



(F)=3F-5+4F

We move all terms to the left:

(F)-(3F-5+4F)=0

We add all the numbers together, and all the variables

F-(7F-5)=0

We get rid of parentheses

F-7F+5=0

We add all the numbers together, and all the variables

-6F+5=0

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

-6F=-5

F=-5/-6

F=5/6

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