12=9+n/2

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Solution for 12=9+n/2 equation: 



12=9+n/2

We move all terms to the left:

12-(9+n/2)=0

We add all the numbers together, and all the variables

-(n/2+9)+12=0

We get rid of parentheses

-n/2-9+12=0

We multiply all the terms by the denominator


-n-9*2+12*2=0

We add all the numbers together, and all the variables

-1n+6=0

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

-n=-6

n=-6/-1

n=+6

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