2n+1=139

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Solution for 2n+1=139 equation: 



2n+1=139

We move all terms to the left:

2n+1-(139)=0

We add all the numbers together, and all the variables

2n-138=0

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

2n=138

n=138/2

n=69

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