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3x+x=6x+12+2
We move all terms to the left:
3x+x-(6x+12+2)=0
We add all the numbers together, and all the variables
3x+x-(6x+14)=0
We add all the numbers together, and all the variables
4x-(6x+14)=0
We get rid of parentheses
4x-6x-14=0
We add all the numbers together, and all the variables
-2x-14=0
We move all terms containing x to the left, all other terms to the right
-2x=14
x=14/-2
x=-7
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