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X2+X+X+1=X2+2X+1
We move all terms to the left:
X2+X+X+1-(X2+2X+1)=0
We add all the numbers together, and all the variables
-(+X^2+2X+1)+X2+X+X+1=0
We add all the numbers together, and all the variables
X^2-(+X^2+2X+1)+2X+1=0
We get rid of parentheses
X^2-X^2-2X+2X-1+1=0
We add all the numbers together, and all the variables
=0
X=0/1
X=0
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