Giải các bất phương trình sau
1. \(\dfrac{x+1}{35}+\dfrac{x+3}{33}>\dfrac{x+5}{31}+\dfrac{x+7}{29}\)
2.\(\dfrac{x+29}{31}-\dfrac{x+27}{33}< \dfrac{x+17}{43}-\dfrac{x+15}{45}\)
3.\(\dfrac{x-1}{13}-\dfrac{2x-13}{15}\ge\dfrac{3x-15}{27}-\dfrac{4x-27}{29}\)
4.\(\dfrac{x-85}{15}+\dfrac{x-74}{13}+\dfrac{x-67}{11}+\dfrac{x-64}{9}\le10\)