9=7n-(8n-2)

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Solution for 9=7n-(8n-2) equation: 



9=7n-(8n-2)

We move all terms to the left:

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



We calculate terms in parentheses: -(7n-(8n-2)), so:

7n-(8n-2)

We get rid of parentheses

7n-8n+2

We add all the numbers together, and all the variables

-1n+2

Back to the equation:

-(-1n+2)



We get rid of parentheses

1n-2+9=0

We add all the numbers together, and all the variables

n+7=0

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

n=-7

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