解下列不等式:
(1)$-\frac {2}{3}x＜-4$; (2)$14-7x≤9-2x$;
(3)$4(x-3)≤2(x-1)$; (4)$11-3x≥2(x-2)$;
(5)$2(5-2x)≤-3(x-2)$; (6)$3(x+2)-1≥8-2(x-1)$;
(7)$3(x-1)＜2(x-2)-5$; (8)$4-2(x-3)≥4(x+1)$.