一元一次不等式组练习题及答案
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328212xx 572431(1)0.54xxx 3(1)2(9)34140.50.2xxxx43321311522xxxx
(1) 2x-1≥0 4<1-3x<13 , 2x<1-x≤x+5
3x+1>0
3x-2<0
4321213xxxx 21.55261xxxx72321235312xxxxx3(2)41214xxxx≤
3(1)7251.3xxxx≤, ① ②5131131132xxxxxxx987121
145123xxxxxxxx237121)1(325 621113xx4321213xxxx
21.55261xxxx72321235312xxxxx43321311522xxxxxxxx253121),1(21053032xxxxx24432532121xxxxxx3213341312
2121312xx351)2(354xxxxxxxx2121325(),.
2731250xxx4321213xxxx21.55261xxxx72321235312xxxxx ≥
.8)1(31,323xxxx 2x-1≥0 (2)4<1-3x<13 43321311522xxxx3(2)41214xxxx≤
3x+1>0 215136xx 572431(1)0.54xxx2101(4)32xx
3x-2<0
5131131132xxxx 3(1)2(4)23215xxxx 632192x
.2235xx
)1(3151215312xxxx213157xxxx≤,. 312342xxxx;.≤ ① ②
23213x3150728xxx;; ① ②4(1)5723(2)xxxx;;≤ ①≤ ②3(1)2(1)4(2)5(1)6xxxx;. ① ②
2235xx
)1(3151215312xxxx2101(4)32xx 572431(1)0.54xxx.04,012xx
.074,03xx51212xx223423xx.1)]3(2[21,312233xxxxx
.3342121xxxx
).2(28,142xxx322,352xxxx
.6)2(3)3(2,132xxxx
3(21)421321.2xxxx≤ 3(1)5412123xxxx≤
24,255,13xxxxxx.074,03xx.04,012xx