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2(2n+4)=4n+1-2n
We move all terms to the left:
2(2n+4)-(4n+1-2n)=0
We add all the numbers together, and all the variables
2(2n+4)-(2n+1)=0
We multiply parentheses
4n-(2n+1)+8=0
We get rid of parentheses
4n-2n-1+8=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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