84=12+6n

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Solution for 84=12+6n equation: 



84=12+6n

We move all terms to the left:

84-(12+6n)=0

We add all the numbers together, and all the variables

-(6n+12)+84=0

We get rid of parentheses

-6n-12+84=0

We add all the numbers together, and all the variables

-6n+72=0

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

-6n=-72

n=-72/-6

n=+12

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