12n+12=3n+84

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Solution for 12n+12=3n+84 equation: 



12n+12=3n+84

We move all terms to the left:

12n+12-(3n+84)=0

We get rid of parentheses

12n-3n-84+12=0

We add all the numbers together, and all the variables

9n-72=0

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

9n=72

n=72/9

n=8

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