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