n-9=2n-1

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Solution for n-9=2n-1 equation: 



n-9=2n-1

We move all terms to the left:

n-9-(2n-1)=0

We get rid of parentheses

n-2n+1-9=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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