-n+9=1+7n

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



-n+9=1+7n

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-1n-7n-1+9=0

We add all the numbers together, and all the variables

-8n+8=0

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

-8n=-8

n=-8/-8

n=1

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