n-9=9n=15

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



n-9=9n=15

We move all terms to the left:

n-9-(9n)=0

We add all the numbers together, and all the variables

-8n-9=0

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

-8n=9

n=9/-8

n=-1+1/8

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