-2n-12=-3n+21

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Solution for -2n-12=-3n+21 equation: 



-2n-12=-3n+21

We move all terms to the left:

-2n-12-(-3n+21)=0

We get rid of parentheses

-2n+3n-21-12=0

We add all the numbers together, and all the variables

n-33=0

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

n=33

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