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X+2(X+7)=3X-7
We move all terms to the left:
X+2(X+7)-(3X-7)=0
We multiply parentheses
X+2X-(3X-7)+14=0
We get rid of parentheses
X+2X-3X+7+14=0
We add all the numbers together, and all the variables
21!=0
There is no solution for this equation
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