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x in (-oo:+oo)
2*(x-(1/2)) = 2*x+8 // - 2*x+8
2*(x-(1/2))-(2*x)-8 = 0
2*(x-1/2)-2*x-8 = 0
2*(x-1/2)-2*x-8 = 0
-8-1 = 0
-9 = 0
-9 = 0
x belongs to the empty set
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