-3n-9n=24

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Solution for -3n-9n=24 equation: 



-3n-9n=24

We move all terms to the left:

-3n-9n-(24)=0

We add all the numbers together, and all the variables

-12n-24=0

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

-12n=24

n=24/-12

n=-2

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