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2x+^+2x=12-3x
We move all terms to the left:
2x+^+2x-(12-3x)=0
We add all the numbers together, and all the variables
2x+2x-(-3x+12)+^=0
We add all the numbers together, and all the variables
4x-(-3x+12)=0
We get rid of parentheses
4x+3x-12=0
We add all the numbers together, and all the variables
7x-12=0
We move all terms containing x to the left, all other terms to the right
7x=12
x=12/7
x=1+5/7
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