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x in (-oo:+oo)
x-2 = ((2*x-5)^1)/2 // - ((2*x-5)^1)/2
x-(((2*x-5)^1)/2)-2 = 0
x-((2*x-5)/2)-2 = 0
(-1*(2*x-5))/2+x-2 = 0
(-1*(2*x-5))/2+(2*x)/2+(-2*2)/2 = 0
2*x-1*(2*x-5)-2*2 = 0
5-4 = 0
1 = 0
1/2 = 0
1/2 = 0 // * 2
1 = 0
x belongs to the empty set
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