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x in (-oo:+oo)
2*x-(1/3) < 4*x-(5/5) // - 4*x-(5/5)
2*x-(4*x)-(1/3)+5/5 < 0
2*x-4*x-1/3+5/5 < 0
2/3-2*x < 0 // - 2/3
-2*x < -2/3 // : -2
x > -2/3/(-2)
x > 1/3
x in (1/3:+oo)
(1/3:+oo)
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