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