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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 5: Tìm y y:15-34,87=52,21+6b76,22-y×3=30,61×2

Toán Lớp 5: Tìm y y:15-34,87=52,21+6b76,22-y×3=30,61×2

Comments ( 2 )

  1. Giải đáp:
    A) y:15-34,87=52,21+6
         y:15-34,87=58,21
        y:15=93,08
        y= 93,08×15
        y=1396,2
     
    76,22-y×3=30,61×2
    76,22-yx3=61,22
              yx3=15
                    =15:3
                    =5
     

  2. y:15-34,87=52,21+6                                          
    y:15          =52,21+6+34,87
    y:15          =93,08
    y               =93,08×15
    y               =1396,2 
    76,22-y×3=30,61×2
    76,22-y×3=61,22
              y×3=76,22-61,22
              y×3=15
              y     =15:3
              y     =5

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222-9+11+12:2*14+14 = ? ( )

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