-n-3=9+3n

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



-n-3=9+3n

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-1n-3n-9-3=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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