4n+12=84

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Solution for 4n+12=84 equation: 



4n+12=84

We move all terms to the left:

4n+12-(84)=0

We add all the numbers together, and all the variables

4n-72=0

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

4n=72

n=72/4

n=18

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