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x in (-oo:+oo)
(5/2)*x-(1/3) > -11/2 // + -11/2
(5/2)*x-(1/3)-(-11/2) > 0
(5/2)*x-1/3+11/2 > 0
5/2*x+31/6 > 0 // - 31/6
5/2*x > -31/6 // : 5/2
x > -31/6/5/2
x > -31/15
x in (-31/15:+oo)
(-31/15:+oo)
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