2*(x - 1) - 3*(x + 2) < 6*(1 + x)
2*(x - 1) - 3*(x + 2) < 6*(x + 1)
And(-2 < x, x < oo)
(-2 < x)∧(x < oo)
(-2, oo)
x in Interval.open(-2, oo)