3) |x-1|>15
x - 1 > 15
x - 1 < -15
--
x > 16
x < -14
x∈ (-∞,-14) U(16, +∞)
4)|x+2|<11
x + 2 < 11
x + 2 > -11
x < 9
x > -13
x∈ (-13, 9)
