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2(2n+1)=4n+2
We move all terms to the left:
2(2n+1)-(4n+2)=0
We multiply parentheses
4n-(4n+2)+2=0
We get rid of parentheses
4n-4n-2+2=0
We add all the numbers together, and all the variables
=0
n=0/1
n=0
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