12+2n=19

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Solution for 12+2n=19 equation: 



12+2n=19

We move all terms to the left:

12+2n-(19)=0

We add all the numbers together, and all the variables

2n-7=0

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

2n=7

n=7/2

n=3+1/2

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