-n-9=3n+3

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Solution for -n-9=3n+3 equation: 



-n-9=3n+3

We move all terms to the left:

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

We add all the numbers together, and all the variables

-1n-(3n+3)-9=0

We get rid of parentheses

-1n-3n-3-9=0

We add all the numbers together, and all the variables

-4n-12=0

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

-4n=12

n=12/-4

n=-3

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