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