9=-3+9+2n

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Solution for 9=-3+9+2n equation: 



9=-3+9+2n

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(2n+6)+9=0

We get rid of parentheses

-2n-6+9=0

We add all the numbers together, and all the variables

-2n+3=0

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

-2n=-3

n=-3/-2

n=1+1/2

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