3n+2n+n+12=36

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Solution for 3n+2n+n+12=36 equation: 



3n+2n+n+12=36

We move all terms to the left:

3n+2n+n+12-(36)=0

We add all the numbers together, and all the variables

6n-24=0

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

6n=24

n=24/6

n=4

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