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3r-1=2r+r+1
We move all terms to the left:
3r-1-(2r+r+1)=0
We add all the numbers together, and all the variables
3r-(3r+1)-1=0
We get rid of parentheses
3r-3r-1-1=0
We add all the numbers together, and all the variables
-2!=0
There is no solution for this equation
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