15+12n+3=-9

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Solution for 15+12n+3=-9 equation: 



15+12n+3=-9

We move all terms to the left:

15+12n+3-(-9)=0

We add all the numbers together, and all the variables

12n+27=0

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

12n=-27

n=-27/12

n=-2+1/4

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