不等式4x-5小于3的解集（集合） 不等式4x-5<3的解集.用集合表示
\u4e0d\u7b49\u5f0f4x-5\uff1c3\u7684\u89e3\u96c6\u5982\u4f55\u7528\u96c6\u5408\u8868\u793a{x|x\uff1c2}
\u5206\u6790\uff1a\u5148\u89e3\u4e0d\u7b49\u5f0f\uff0c\u518d\u5229\u7528\u63cf\u8ff0\u6cd5\u8868\u793a\u5176\u89e3\u96c6\u5373\u53ef\u3002
\u89e3\u7b54\uff1a \u89e3\uff1a\u75314x-5\uff1c3\u5f97\uff1ax\uff1c2\uff0c
\u7528\u63cf\u8ff0\u6cd5\u8868\u793a\u5176\u89e3\u96c6\u4e3a\uff1a{x|x\uff1c2}\u3002
\u8003\u70b9\uff1a\u5176\u4ed6\u4e0d\u7b49\u5f0f\u7684\u89e3\u6cd5
\u4e13\u9898\uff1a\u4e0d\u7b49\u5f0f\u7684\u89e3\u6cd5\u53ca\u5e94\u7528
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\u2461\u6bd4\u4e24\u4e2a\u503c\u90fd\u5c0f\uff0c\u5c31\u6bd4\u5c0f\u7684\u8fd8\u5c0f(\u540c\u5c0f\u53d6\u5c0f\uff09\uff1b
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\u5b9a\u7406\u53e3\u8bc0
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\u9ad8\u6b21\u5411\u7740\u4f4e\u6b21\u4ee3\uff0c\u6b65\u6b65\u8f6c\u5316\u8981\u7b49\u4ef7\u3002\u6570\u5f62\u4e4b\u95f4\u4e92\u8f6c\u5316\uff0c\u5e2e\u52a9\u89e3\u7b54\u4f5c\u7528\u5927\u3002
\u8bc1\u4e0d\u7b49\u5f0f\u7684\u65b9\u6cd5\uff0c\u5b9e\u6570\u6027\u8d28\u5a01\u529b\u5927\u3002\u6c42\u5dee\u4e0e0\u6bd4\u5927\u5c0f\uff0c\u4f5c\u5546\u548c1\u4e89\u9ad8\u4e0b\u3002
\u76f4\u63a5\u56f0\u96be\u5206\u6790\u597d\uff0c\u601d\u8def\u6e05\u6670\u7efc\u5408\u6cd5\u3002\u975e\u8d1f\u5e38\u7528\u57fa\u672c\u5f0f\uff0c\u6b63\u9762\u96be\u5219\u53cd\u8bc1\u6cd5\u3002
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\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1\u2014\u2014\u4e0d\u7b49\u5f0f
{x|x\uff1c2}
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1\u3001\u4e0d\u7b49\u5f0fF\uff08x\uff09F\uff08x\uff09\u540c\u89e3\u3002
2\u3001\u5982\u679c\u4e0d\u7b49\u5f0fF\uff08x\uff09 < G\uff08x\uff09\u7684\u5b9a\u4e49\u57df\u88ab\u89e3\u6790\u5f0fH\uff08 x \uff09\u7684\u5b9a\u4e49\u57df\u6240\u5305\u542b\uff0c\u90a3\u4e48\u4e0d\u7b49\u5f0f F\uff08x\uff09<G\uff08x\uff09\u4e0e\u4e0d\u7b49\u5f0fF\uff08x\uff09+H\uff08x\uff09<G\uff08x\uff09+H\uff08x\uff09\u540c\u89e3\u3002
3\u3001\u5982\u679c\u4e0d\u7b49\u5f0fF\uff08x\uff090\uff0c\u90a3\u4e48\u4e0d\u7b49\u5f0fF(x)H\uff08x\uff09G\uff08x\uff09\u540c\u89e3\u3002
4\u3001\u4e0d\u7b49\u5f0fF\uff08x\uff09G\uff08x\uff09>0\u4e0e\u4e0d\u7b49\u5f0f\u540c\u89e3\uff1b\u4e0d\u7b49\u5f0fF\uff08x\uff09G\uff08x\uff09<0\u4e0e\u4e0d\u7b49\u5f0f\u540c\u89e3\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1\u2014\u2014\u4e0d\u7b49\u5f0f
求采纳
绛旓細瑙ｇ瓟锛 瑙ｏ細鐢4x-5锛3寰楋細x锛2锛岀敤鎻忚堪娉曡〃绀哄叾瑙ｉ泦涓猴細{x|x锛2}銆傞氬父涓嶇瓑寮忎腑鐨勬暟鏄疄鏁帮紝瀛楁瘝涔熶唬琛ㄥ疄鏁帮紝涓嶇瓑寮忕殑涓鑸舰寮忎负F(x锛寉锛屸︹︼紝z)鈮(x锛寉锛屸︹︼紝z )锛堝叾涓笉绛夊彿涔熷彲浠ヤ负<锛屸墹,鈮ワ紝> 涓煇涓涓級锛屼袱杈圭殑瑙ｆ瀽寮忕殑鍏叡瀹氫箟鍩熺О涓轰笉绛夊紡鐨勫畾涔夊煙锛屼笉绛夊紡鏃㈠彲浠ヨ〃杈...
绛旓細涓嶇瓑寮4x-5<3鐨勮В闆涓簕x/x<2}
绛旓細鍒嗘瀽锛氬厛瑙涓嶇瓑寮锛屽啀鍒╃敤鎻忚堪娉曡〃绀哄叾瑙ｉ泦鍗冲彲銆傝В绛旓細 瑙ｏ細鐢4x-5锛3寰楋細x锛2锛岀敤鎻忚堪娉曡〃绀哄叾瑙ｉ泦涓猴細{x|x锛2}銆傝冪偣锛氬叾浠栦笉绛夊紡鐨勮В娉 涓撻锛氫笉绛夊紡鐨勮В娉曞強搴旂敤 鐐硅瘎锛氭湰棰樿冩煡鐢ㄩ傚綋鐨勬柟娉曡〃绀轰笉绛夊紡ax锛渂锛坅鈮0锛鐨勮В闆锛岀潃閲嶈冩煡瀵瑰垪涓炬硶涓庢弿杩版硶鐨勭悊瑙ｄ笌搴旂敤锛屽睘浜庡熀纭棰樸
绛旓細瑙ｇ瓟锛 瑙ｏ細鐢4x-5锛3寰楋細x锛2锛岀敤鎻忚堪娉曡〃绀哄叾瑙ｉ泦涓猴細{x|x锛2}銆傚鏋涓嶇瓑寮F锛坸锛 < G锛坸锛夌殑瀹氫箟鍩熻瑙ｆ瀽寮廐锛 x 锛夌殑瀹氫箟鍩熸墍鍖呭惈锛岄偅涔堜笉绛夊紡 F锛坸锛<G锛坸锛変笌涓嶇瓑寮廎锛坸锛+H锛坸锛<G锛坸锛+H锛坸锛夊悓瑙ｃ傚熀鏈ц川 鈶犲鏋渪>y锛岄偅涔坹<x锛涘鏋測<x锛岄偅涔坸>y锛涳紙瀵圭О鎬э級...
绛旓細绛旀銆俋锕2
绛旓細4x-5<3 x<2 闆嗗悎涓簕x|x<2,x灞炰簬R} 姹傞噰绾
绛旓細绉婚」寰楋紝4x锛5+3锛屽悎骞跺悓绫婚」寰楋紝4x锛8锛岀郴鏁板寲涓1寰楋紝x锛2锛庢晠鍘涓嶇瓑寮忕殑瑙ｉ泦涓猴紙-鈭烇紝2锛夛紝鏁呴夛細D
绛旓細锝泋|x<2}銆涓嶇瓑寮4x-5<3鐨瑙ｇ瓟杩囩▼濡備笅锛氾紙1锛4x-5<3锛岀Щ椤癸紙鎶-5绉诲埌鍙宠竟锛夊彲寰楋細4x<3+5=8銆傦紙2锛4x<8锛屼笉绛夊紡涓よ竟鍚屾椂闄や互4锛岃В寰楋細x<2銆傦紙3锛墄<2浠ｈ〃鐨勬暟寰堝锛屾晠鐢ㄦ弿杩版硶琛ㄧず鍏堕泦鍚堬細锝泋|x<2}銆
绛旓細4x-5灏忎簬3 4x灏忎簬-2 x灏忎簬-0.5
绛旓細4x-5锛3 4x锛8 x锛2 鍥炵瓟瀹屾瘯~~鏈夌枒闂杩介棶锛屾棤鐤戦棶璇风偣鍑汇愰噰绾炽憕绁濆涔犺繘姝~~\(^o^)/~
