-3=9+2n=23

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Solution for -3=9+2n=23 equation: 



-3=9+2n=23

We move all terms to the left:

-3-(9+2n)=0

We add all the numbers together, and all the variables

-(2n+9)-3=0

We get rid of parentheses

-2n-9-3=0

We add all the numbers together, and all the variables

-2n-12=0

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

-2n=12

n=12/-2

n=-6

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