A(n)=-9+(n-1)(5)

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Solution for A(n)=-9+(n-1)(5) equation: 



(A)=-9+(A-1)(5)

We move all terms to the left:

(A)-(-9+(A-1)(5))=0



We calculate terms in parentheses: -(-9+(A-1)5), so:

-9+(A-1)5

determiningTheFunctionDomain
(A-1)5-9

We multiply parentheses

5A-5-9

We add all the numbers together, and all the variables

5A-14

Back to the equation:

-(5A-14)



We get rid of parentheses

A-5A+14=0

We add all the numbers together, and all the variables

-4A+14=0

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

-4A=-14

A=-14/-4

A=3+1/2

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