2-7n=9

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Solution for 2-7n=9 equation: 



2-7n=9

We move all terms to the left:

2-7n-(9)=0

We add all the numbers together, and all the variables

-7n-7=0

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

-7n=7

n=7/-7

n=-1

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