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

Toán Lớp 5: 1/3- 2/x × 3/8=1/4 nhanh nha thank

Toán Lớp 5: 1/3- 2/x × 3/8=1/4 nhanh nha
thank

Comments ( 2 )

  1. 1/3 – 2/x × 3/8 = 1/4
    2/x × 3/8 = 1/3 – 1/4
    2/x × 3/8 = 1/12
    2/x = 1/12 : 3/8
    2/x = 2/9
    => x = 9
    #dtkc

  2. 1/3- 2/x xx3/8=1/4
    2/x xx3/8=1/3-1/4
    2/x xx3/8=4/12-3/12
    2/x xx3/8=1/12
    2/x= 1/12:3/8
    2/x=1/12xx8/3
    2/x=2/9
    x=9
    Vậy x=9

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

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