-9=2n+3n+6

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Solution for -9=2n+3n+6 equation: 



-9=2n+3n+6

We move all terms to the left:

-9-(2n+3n+6)=0

We add all the numbers together, and all the variables

-(5n+6)-9=0

We get rid of parentheses

-5n-6-9=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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