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4x-2=12x+9.
We move all terms to the left:
4x-2-(12x+9.)=0
We add all the numbers together, and all the variables
4x-(12x+9)-2=0
We get rid of parentheses
4x-12x-9-2=0
We add all the numbers together, and all the variables
-8x-11=0
We move all terms containing x to the left, all other terms to the right
-8x=11
x=11/-8
x=-1+3/8
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