2n-42=20

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Solution for 2n-42=20 equation: 



2n-42=20

We move all terms to the left:

2n-42-(20)=0

We add all the numbers together, and all the variables

2n-62=0

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

2n=62

n=62/2

n=31

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