2n-6=-3n-21

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Solution for 2n-6=-3n-21 equation: 



2n-6=-3n-21

We move all terms to the left:

2n-6-(-3n-21)=0

We get rid of parentheses

2n+3n+21-6=0

We add all the numbers together, and all the variables

5n+15=0

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

5n=-15

n=-15/5

n=-3

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