12+4n=-28

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Solution for 12+4n=-28 equation: 



12+4n=-28

We move all terms to the left:

12+4n-(-28)=0

We add all the numbers together, and all the variables

4n+40=0

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

4n=-40

n=-40/4

n=-10

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