15=-3(-3+n)

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Solution for 15=-3(-3+n) equation: 



15=-3(-3+n)

We move all terms to the left:

15-(-3(-3+n))=0

We add all the numbers together, and all the variables

-(-3(n-3))+15=0



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

-3(n-3)

We multiply parentheses

-3n+9

Back to the equation:

-(-3n+9)



We get rid of parentheses

3n-9+15=0

We add all the numbers together, and all the variables

3n+6=0

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

3n=-6

n=-6/3

n=-2

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