11*x - 3 7*x + 1 x -------- < ------- - - 14 7 3
(11*x - 3)/14 < -x/3 + (7*x + 1)/7
(-oo, 3)
x in Interval.open(-oo, 3)
And(-oo < x, x < 3)
(-oo < x)∧(x < 3)