F(x)=3x+5.X=R

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Solution for F(x)=3x+5.X=R equation: 



(F)=3F+5.F=

We move all terms to the left:

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

We add all the numbers together, and all the variables

F-(+8F)=0

We get rid of parentheses

F-8F=0

We add all the numbers together, and all the variables

-7F=0

F=0/-7

F=0

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