9-(-3n)=-3

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Solution for 9-(-3n)=-3 equation: 



9-(-3n)=-3

We move all terms to the left:

9-(-3n)-(-3)=0

We add all the numbers together, and all the variables

-(-3n)+12=0

We get rid of parentheses

3n+12=0

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

3n=-12

n=-12/3

n=-4

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