|4*x - 3| >= 2*x + 3
Or(And(3 <= x, x < oo), And(x <= 0, -oo < x))
((3 <= x)∧(x < oo))∨((x <= 0)∧(-oo < x))
(-oo, 0] U [3, oo)
x in Union(Interval(-oo, 0), Interval(3, oo))