-9-10n=7-8n

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Solution for -9-10n=7-8n equation: 



-9-10n=7-8n

We move all terms to the left:

-9-10n-(7-8n)=0

We add all the numbers together, and all the variables

-10n-(-8n+7)-9=0

We get rid of parentheses

-10n+8n-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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