12n+4+5n=-30

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Solution for 12n+4+5n=-30 equation: 



12n+4+5n=-30

We move all terms to the left:

12n+4+5n-(-30)=0

We add all the numbers together, and all the variables

17n+34=0

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

17n=-34

n=-34/17

n=-2

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