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X in (-oo:+oo)
X/1.7 < 3 // - 3
X/1.7-3 < 0
0.58823529*X-3 < 0 // + 3
0.58823529*X < 3 // : 0.58823529
X < 3/0.58823529
X < 5.10000004
X in (-oo:5.10000004)
(-oo:5.10000004)
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