A(n)=5+(n-1)(4)

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Solution for A(n)=5+(n-1)(4) equation: 



(A)=5+(A-1)(4)

We move all terms to the left:

(A)-(5+(A-1)(4))=0



We calculate terms in parentheses: -(5+(A-1)4), so:

5+(A-1)4

determiningTheFunctionDomain
(A-1)4+5

We multiply parentheses

4A-4+5

We add all the numbers together, and all the variables

4A+1

Back to the equation:

-(4A+1)



We get rid of parentheses

A-4A-1=0

We add all the numbers together, and all the variables

-3A-1=0

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

-3A=1

A=1/-3

A=-1/3

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