若a小于0,化简|5a+|a||/3

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若a小于0,化简|5a+|a||/3若a小于0,化简|5a+|a||/3若a小于0,化简|5a+|a||/3|5a+|a||/3=|5a-a|/3=|4a|/3=-4a/3

若a小于0,化简|5a+|a||/3
若a小于0,化简|5a+|a||/3

若a小于0,化简|5a+|a||/3
|5a+|a||/3
=|5a-a|/3
=|4a|/3
=-4a/3