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