-1=9+1n

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Solution for -1=9+1n equation: 



-1=9+1n

We move all terms to the left:

-1-(9+1n)=0

We add all the numbers together, and all the variables

-(n+9)-1=0

We get rid of parentheses

-n-9-1=0

We add all the numbers together, and all the variables

-1n-10=0

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

-n=10

n=10/-1

n=-10

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