12+3n=n+8

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Solution for 12+3n=n+8 equation: 



12+3n=n+8

We move all terms to the left:

12+3n-(n+8)=0

We get rid of parentheses

3n-n-8+12=0

We add all the numbers together, and all the variables

2n+4=0

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

2n=-4

n=-4/2

n=-2

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