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-3(x-4)=2x+4x
We move all terms to the left:
-3(x-4)-(2x+4x)=0
We add all the numbers together, and all the variables
-3(x-4)-(+6x)=0
We multiply parentheses
-3x-(+6x)+12=0
We get rid of parentheses
-3x-6x+12=0
We add all the numbers together, and all the variables
-9x+12=0
We move all terms containing x to the left, all other terms to the right
-9x=-12
x=-12/-9
x=1+1/3
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