27=3n-12n

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Solution for 27=3n-12n equation: 



27=3n-12n

We move all terms to the left:

27-(3n-12n)=0

We add all the numbers together, and all the variables

-(-9n)+27=0

We get rid of parentheses

9n+27=0

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

9n=-27

n=-27/9

n=-3

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