15=-4n-n

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Solution for 15=-4n-n equation: 



15=-4n-n

We move all terms to the left:

15-(-4n-n)=0

We add all the numbers together, and all the variables

-(-5n)+15=0

We get rid of parentheses

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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