n+12=9-n-17

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Solution for n+12=9-n-17 equation: 



n+12=9-n-17

We move all terms to the left:

n+12-(9-n-17)=0

We add all the numbers together, and all the variables

n-(-1n-8)+12=0

We get rid of parentheses

n+1n+8+12=0

We add all the numbers together, and all the variables

2n+20=0

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

2n=-20

n=-20/2

n=-10

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