12=3n-2-n

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Solution for 12=3n-2-n equation: 



12=3n-2-n

We move all terms to the left:

12-(3n-2-n)=0

We add all the numbers together, and all the variables

-(2n-2)+12=0

We get rid of parentheses

-2n+2+12=0

We add all the numbers together, and all the variables

-2n+14=0

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

-2n=-14

n=-14/-2

n=+7

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