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-2(4-2x)=x+4
We move all terms to the left:
-2(4-2x)-(x+4)=0
We add all the numbers together, and all the variables
-2(-2x+4)-(x+4)=0
We multiply parentheses
4x-(x+4)-8=0
We get rid of parentheses
4x-x-4-8=0
We add all the numbers together, and all the variables
3x-12=0
We move all terms containing x to the left, all other terms to the right
3x=12
x=12/3
x=4
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