有理数A.B.C在数轴上的对应点如图所示,其中0为原点,试化简|a|-|a+b|+|c-a|+|b+c|数轴:C B 0 A | | | | ——————————————————————————--------
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![有理数A.B.C在数轴上的对应点如图所示,其中0为原点,试化简|a|-|a+b|+|c-a|+|b+c|数轴:C B 0 A | | | | ——————————————————————————--------](/uploads/image/z/1511792-8-2.jpg?t=%E6%9C%89%E7%90%86%E6%95%B0A.B.C%E5%9C%A8%E6%95%B0%E8%BD%B4%E4%B8%8A%E7%9A%84%E5%AF%B9%E5%BA%94%E7%82%B9%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E5%85%B6%E4%B8%AD0%E4%B8%BA%E5%8E%9F%E7%82%B9%2C%E8%AF%95%E5%8C%96%E7%AE%80%7Ca%7C-%7Ca%2Bb%7C%2B%7Cc-a%7C%2B%7Cb%2Bc%7C%E6%95%B0%E8%BD%B4%EF%BC%9AC+B+0+A+%7C+%7C+%7C+%7C+%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94--------)
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