2n+4+2n=12

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Solution for 2n+4+2n=12 equation: 



2n+4+2n=12

We move all terms to the left:

2n+4+2n-(12)=0

We add all the numbers together, and all the variables

4n-8=0

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

4n=8

n=8/4

n=2

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