-2n+9=7

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Solution for -2n+9=7 equation: 



-2n+9=7

We move all terms to the left:

-2n+9-(7)=0

We add all the numbers together, and all the variables

-2n+2=0

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

-2n=-2

n=-2/-2

n=1

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