2-n+3n=12

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



2-n+3n=12

We move all terms to the left:

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

We add all the numbers together, and all the variables

2n-10=0

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

2n=10

n=10/2

n=5

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