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x in (-oo:+oo)
(7/15)*x-(8/7) < 3/2-((1/4)*x) // - 3/2-((1/4)*x)
(7/15)*x+(1/4)*x-(8/7)-(3/2) < 0
(7/15)*x+(1/4)*x-8/7-3/2 < 0
43/60*x-37/14 < 0 // + 37/14
43/60*x < 37/14 // : 43/60
x < 37/14/43/60
x < 1110/301
x in (-oo:1110/301)
(-oo:1110/301)
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