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-12+4x=7-2x
We move all terms to the left:
-12+4x-(7-2x)=0
We add all the numbers together, and all the variables
4x-(-2x+7)-12=0
We get rid of parentheses
4x+2x-7-12=0
We add all the numbers together, and all the variables
6x-19=0
We move all terms containing x to the left, all other terms to the right
6x=19
x=19/6
x=3+1/6
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