A(n)=5+(n-1)3

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Solution for A(n)=5+(n-1)3 equation: 



(A)=5+(A-1)3

We move all terms to the left:

(A)-(5+(A-1)3)=0



We calculate terms in parentheses: -(5+(A-1)3), so:

5+(A-1)3

determiningTheFunctionDomain
(A-1)3+5

We multiply parentheses

3A-3+5

We add all the numbers together, and all the variables

3A+2

Back to the equation:

-(3A+2)



We get rid of parentheses

A-3A-2=0

We add all the numbers together, and all the variables

-2A-2=0

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

-2A=2

A=2/-2

A=-1

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