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X+2X+7=3X-9
We move all terms to the left:
X+2X+7-(3X-9)=0
We add all the numbers together, and all the variables
3X-(3X-9)+7=0
We get rid of parentheses
3X-3X+9+7=0
We add all the numbers together, and all the variables
16!=0
There is no solution for this equation
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