一元一次不等式组练习题及答案

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(1) 2x-1≥0 4<1-3x<13 , 2x<1-x≤x+5

3x+1>0

3x-2<0

4321213xxxx 21.55261xxxx72321235312xxxxx3(2)41214xxxx≤

3(1)7251.3xxxx≤, ① ②5131131132xxxxxxx987121

145123xxxxxxxx237121)1(325 621113xx4321213xxxx

21.55261xxxx72321235312xxxxx43321311522xxxxxxxx253121),1(21053032xxxxx24432532121xxxxxx3213341312

2121312xx351)2(354xxxxxxxx2121325(),.

2731250xxx4321213xxxx21.55261xxxx72321235312xxxxx ≥

.8)1(31,323xxxx 2x-1≥0 (2)4<1-3x<13 43321311522xxxx3(2)41214xxxx≤

3x+1>0 215136xx 572431(1)0.54xxx2101(4)32xx

3x-2<0

5131131132xxxx 3(1)2(4)23215xxxx 632192x

.2235xx

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23213x3150728xxx;; ① ②4(1)5723(2)xxxx;;≤ ①≤ ②3(1)2(1)4(2)5(1)6xxxx;. ① ②

2235xx

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.074,03xx51212xx223423xx.1)]3(2[21,312233xxxxx

.3342121xxxx

).2(28,142xxx322,352xxxx

.6)2(3)3(2,132xxxx

3(21)421321.2xxxx≤ 3(1)5412123xxxx≤

24,255,13xxxxxx.074,03xx.04,012xx