n=12+(n-1)(-3)

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Solution for n=12+(n-1)(-3) equation: 



n=12+(n-1)(-3)

We move all terms to the left:

n-(12+(n-1)(-3))=0

We multiply parentheses ..

n-(12+(-3n+3))=0



We calculate terms in parentheses: -(12+(-3n+3)), so:

12+(-3n+3)

determiningTheFunctionDomain
(-3n+3)+12

We get rid of parentheses

-3n+3+12

We add all the numbers together, and all the variables

-3n+15

Back to the equation:

-(-3n+15)



We get rid of parentheses

n+3n-15=0

We add all the numbers together, and all the variables

4n-15=0

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

4n=15

n=15/4

n=3+3/4

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