-7+4n+6=-21

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Solution for -7+4n+6=-21 equation: 



-7+4n+6=-21

We move all terms to the left:

-7+4n+6-(-21)=0

We add all the numbers together, and all the variables

4n+20=0

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

4n=-20

n=-20/4

n=-5

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