|9-x|<2 –2 < 9–x < 2–2–9 < –x < 2–9 –11 < –x < –7 11 > x > 7 7 < x < 11 |x+7| > 8x+7 < –8 и x+7 > 8x < –7–8 x > 8–7x < –15 x > 1