n-12=-4n

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Solution for n-12=-4n equation: 



n-12=-4n

We move all terms to the left:

n-12-(-4n)=0

We get rid of parentheses

n+4n-12=0

We add all the numbers together, and all the variables

5n-12=0

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

5n=12

n=12/5

n=2+2/5

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