F(a)=3(a+2)-1

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Solution for F(a)=3(a+2)-1 equation: 



(F)=3(F+2)-1

We move all terms to the left:

(F)-(3(F+2)-1)=0



We calculate terms in parentheses: -(3(F+2)-1), so:

3(F+2)-1

We multiply parentheses

3F+6-1

We add all the numbers together, and all the variables

3F+5

Back to the equation:

-(3F+5)



We get rid of parentheses

F-3F-5=0

We add all the numbers together, and all the variables

-2F-5=0

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

-2F=5

F=5/-2

F=-2+1/2

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