7n+1=8n+9

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



7n+1=8n+9

We move all terms to the left:

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

We get rid of parentheses

7n-8n-9+1=0

We add all the numbers together, and all the variables

-1n-8=0

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

-n=8

n=8/-1

n=-8

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