3n+2n+n+-12+7=90

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Solution for 3n+2n+n+-12+7=90 equation: 



3n+2n+n+-12+7=90

We move all terms to the left:

3n+2n+n+-12+7-(90)=0

determiningTheFunctionDomain
3n+2n+n-12+7-90+=0

We add all the numbers together, and all the variables

6n=0

n=0/6

n=0

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