-12=-3n+5+4

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Solution for -12=-3n+5+4 equation: 



-12=-3n+5+4

We move all terms to the left:

-12-(-3n+5+4)=0

We add all the numbers together, and all the variables

-(-3n+9)-12=0

We get rid of parentheses

3n-9-12=0

We add all the numbers together, and all the variables

3n-21=0

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

3n=21

n=21/3

n=7

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