-n=8n-9n

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



-n=8n-9n

We move all terms to the left:

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

We add all the numbers together, and all the variables

-n-(-1n)=0

We add all the numbers together, and all the variables

-1n-(-1n)=0

We get rid of parentheses

-1n+1n=0

We add all the numbers together, and all the variables

=0

n=0/1

n=0

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