F(n)=7+(n-1)3

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Solution for F(n)=7+(n-1)3 equation: 



(F)=7+(F-1)3

We move all terms to the left:

(F)-(7+(F-1)3)=0



We calculate terms in parentheses: -(7+(F-1)3), so:

7+(F-1)3

determiningTheFunctionDomain
(F-1)3+7

We multiply parentheses

3F-3+7

We add all the numbers together, and all the variables

3F+4

Back to the equation:

-(3F+4)



We get rid of parentheses

F-3F-4=0

We add all the numbers together, and all the variables

-2F-4=0

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

-2F=4

F=4/-2

F=-2

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