5*x 4*x 9 - --- - --- < 3*x - 1/6 2 3
-4*x/3 - 5*x/2 + 9 < 3*x - 1/6
/55 \ And|-- < x, x < oo| \41 /
(55/41 < x)∧(x < oo)
55 (--, oo) 41
x in Interval.open(55/41, oo)