9n+12+15n-6=120

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Solution for 9n+12+15n-6=120 equation: 



9n+12+15n-6=120

We move all terms to the left:

9n+12+15n-6-(120)=0

We add all the numbers together, and all the variables

24n-114=0

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

24n=114

n=114/24

n=4+3/4

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