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x in (-oo:+oo)
(2*x)/7-(3/19) < 25 // - 25
(2*x)/7-(3/19)-25 < 0
(2*x)/7-3/19-25 < 0
2/7*x-478/19 < 0 // + 478/19
2/7*x < 478/19 // : 2/7
x < 478/19/2/7
x < 1673/19
x in (-oo:1673/19)
(-oo:1673/19)
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