12=n+4

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Solution for 12=n+4 equation: 



12=n+4

We move all terms to the left:

12-(n+4)=0

We get rid of parentheses

-n-4+12=0

We add all the numbers together, and all the variables

-1n+8=0

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

-n=-8

n=-8/-1

n=+8

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