3n-12=n+4

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Solution for 3n-12=n+4 equation: 



3n-12=n+4

We move all terms to the left:

3n-12-(n+4)=0

We get rid of parentheses

3n-n-4-12=0

We add all the numbers together, and all the variables

2n-16=0

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

2n=16

n=16/2

n=8

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