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

Toán Lớp 5: Tìm x biết: 123 : x + 12 : x = 4,5

Toán Lớp 5: Tìm x biết: 123 : x + 12 : x = 4,5

Comments ( 2 )

  1. 123:x+12:x=4,5
    (123+12):x=4,5
    135:x=4,5
    x=135:4,5
    x=30
    \text{Vậy x = 30} 
    \text{@Nhi} 
     

  2. 123 : x + 12 : x = 4,5
    (123+12) : x = 4,5
    135 : x = 4,5
    x = 135 : 4,5
    x = 30
    Vậy x = 30

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