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

Toán Lớp 6: tìm số tự nhiên x biết (4x-16):15=60

Toán Lớp 6: tìm số tự nhiên x biết (4x-16):15=60

Comments ( 2 )

  1. (4x-16):15=60
    (4x-16)=60. 15
    4x-16=900
    4x=900+16
    4x=916
    x=916:4
    x=229
               

  2. (4x – 16) : 15 = 60
    => 4x – 16 = 60. 15
    => 4x – 16 = 900
    => 4x = 900 + 16
    => 4x = 916
    =>   x = 916 : 4
    =>   x = 229
    Vậy x = 229
     

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

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