why 2x-x=0? the questions is 2x>x-1
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You asked in English,so I will answer it in English.
If 2x>x-1,then 2x-x>-1,which means that x>-1
It doesn't make sense to say, here, that 2x-x =0,because x is not zero.You only can say that x+1>0.
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