18=3(-3n-3)

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Solution for 18=3(-3n-3) equation: 



18=3(-3n-3)

We move all terms to the left:

18-(3(-3n-3))=0



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

3(-3n-3)

We multiply parentheses

-9n-9

Back to the equation:

-(-9n-9)



We get rid of parentheses

9n+9+18=0

We add all the numbers together, and all the variables

9n+27=0

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

9n=-27

n=-27/9

n=-3

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