-7n-9=8-1-9n

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



-7n-9=8-1-9n

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-7n+9n-7-9=0

We add all the numbers together, and all the variables

2n-16=0

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

2n=16

n=16/2

n=8

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