n-1=9n+15

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Solution for n-1=9n+15 equation: 



n-1=9n+15

We move all terms to the left:

n-1-(9n+15)=0

We get rid of parentheses

n-9n-15-1=0

We add all the numbers together, and all the variables

-8n-16=0

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

-8n=16

n=16/-8

n=-2

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