-15-2n=9+2n

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Solution for -15-2n=9+2n equation: 



-15-2n=9+2n

We move all terms to the left:

-15-2n-(9+2n)=0

We add all the numbers together, and all the variables

-2n-(2n+9)-15=0

We get rid of parentheses

-2n-2n-9-15=0

We add all the numbers together, and all the variables

-4n-24=0

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

-4n=24

n=24/-4

n=-6

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