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-8

Back to the equation:

-(3A-8)



We get rid of parentheses

A-3A+8=0

We add all the numbers together, and all the variables

-2A+8=0

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

-2A=-8

A=-8/-2

A=+4

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