-12+7n=6n+3n

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Solution for -12+7n=6n+3n equation: 



-12+7n=6n+3n

We move all terms to the left:

-12+7n-(6n+3n)=0

We add all the numbers together, and all the variables

7n-(+9n)-12=0

We get rid of parentheses

7n-9n-12=0

We add all the numbers together, and all the variables

-2n-12=0

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

-2n=12

n=12/-2

n=-6

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