A(n)=2-4(n-1)

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Solution for A(n)=2-4(n-1) equation: 



(A)=2-4(A-1)

We move all terms to the left:

(A)-(2-4(A-1))=0



We calculate terms in parentheses: -(2-4(A-1)), so:

2-4(A-1)

determiningTheFunctionDomain
-4(A-1)+2

We multiply parentheses

-4A+4+2

We add all the numbers together, and all the variables

-4A+6

Back to the equation:

-(-4A+6)



We get rid of parentheses

A+4A-6=0

We add all the numbers together, and all the variables

5A-6=0

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

5A=6

A=6/5

A=1+1/5

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