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2x+6=7x-12+3x
We move all terms to the left:
2x+6-(7x-12+3x)=0
We add all the numbers together, and all the variables
2x-(10x-12)+6=0
We get rid of parentheses
2x-10x+12+6=0
We add all the numbers together, and all the variables
-8x+18=0
We move all terms containing x to the left, all other terms to the right
-8x=-18
x=-18/-8
x=2+1/4
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