-30=6+3(n-9)

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Solution for -30=6+3(n-9) equation: 



-30=6+3(n-9)

We move all terms to the left:

-30-(6+3(n-9))=0



We calculate terms in parentheses: -(6+3(n-9)), so:

6+3(n-9)

determiningTheFunctionDomain
3(n-9)+6

We multiply parentheses

3n-27+6

We add all the numbers together, and all the variables

3n-21

Back to the equation:

-(3n-21)



We get rid of parentheses

-3n+21-30=0

We add all the numbers together, and all the variables

-3n-9=0

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

-3n=9

n=9/-3

n=-3

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