A=7-3(n-1)

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Solution for A=7-3(n-1) equation: 



=7-3(A-1)

We move all terms to the left:

-(7-3(A-1))=0



We calculate terms in parentheses: -(7-3(A-1)), so:

7-3(A-1)

determiningTheFunctionDomain
-3(A-1)+7

We multiply parentheses

-3A+3+7

We add all the numbers together, and all the variables

-3A+10

Back to the equation:

-(-3A+10)



We get rid of parentheses

3A-10=0

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

3A=10

A=10/3

A=3+1/3

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