A(n)=19-7(n-1)

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Solution for A(n)=19-7(n-1) equation: 



(A)=19-7(A-1)

We move all terms to the left:

(A)-(19-7(A-1))=0



We calculate terms in parentheses: -(19-7(A-1)), so:

19-7(A-1)

determiningTheFunctionDomain
-7(A-1)+19

We multiply parentheses

-7A+7+19

We add all the numbers together, and all the variables

-7A+26

Back to the equation:

-(-7A+26)



We get rid of parentheses

A+7A-26=0

We add all the numbers together, and all the variables

8A-26=0

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

8A=26

A=26/8

A=3+1/4

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