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X+23=2X-X+45
We move all terms to the left:
X+23-(2X-X+45)=0
We add all the numbers together, and all the variables
X-(X+45)+23=0
We get rid of parentheses
X-X-45+23=0
We add all the numbers together, and all the variables
-22!=0
There is no solution for this equation
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