9+2n=-7n-1-8

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Solution for 9+2n=-7n-1-8 equation: 



9+2n=-7n-1-8

We move all terms to the left:

9+2n-(-7n-1-8)=0

We add all the numbers together, and all the variables

2n-(-7n-9)+9=0

We get rid of parentheses

2n+7n+9+9=0

We add all the numbers together, and all the variables

9n+18=0

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

9n=-18

n=-18/9

n=-2

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