4*x x 2*x 1 - --- < 2 - - - --- 9 3 27
1 - 4*x/9 < -2*x/27 + 2 - x/3
And(-27 < x, x < oo)
(-27 < x)∧(x < oo)
(-27, oo)
x in Interval.open(-27, oo)