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  • (1+50%)X*80%-X=20 过程要详细

    提问者:出水^_^芙蓉

    发布于2010-12-24

共1个回答
  • 搜房网友 丨Lv 10
                   (1+50%)X*80%-X=20                                                                                                                                                                                                解:                 1.5X*80%X=20                    1.2X-X=201.2X-X=200.2X=20X=20/0.2X=100                                                                                                                                                      
    +17 2011-01-09 举报
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