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

Toán Lớp 6: 2480−4710÷3+[200−(x−5)]=1010 mk đang cần gấp

Toán Lớp 6: 2480−4710÷3+[200−(x−5)]=1010
mk đang cần gấp

Comments ( 2 )

  1. 2480 – 4710 : 3 + [ 200 – ( x – 5)] = 1010
    2480 –  1570 + [ 200 – x + 5] = 1010
    910+ [ ( 200 + 5) – x] = 1010
    [ 205 – x] = 1010 – 910
    205 – x = 100
    x = 205 – 100
    x =105
    vậy x = 105
    #caty09

  2. Làm luôn
    2480-1570+[200-(x-5)]=1010
    910+[200-(x-5)]= 1010
    200-(x-5)=1010-910
    200-x+5=100
    205-x=100
    x=205-100
    x=105

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

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