9=n+3-3n

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



9=n+3-3n

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(-2n+3)+9=0

We get rid of parentheses

2n-3+9=0

We add all the numbers together, and all the variables

2n+6=0

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

2n=-6

n=-6/2

n=-3

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