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

Toán Lớp 6: 5.[x + (-15)] – 20 = -30 – (- 105)

Toán Lớp 6: 5.[x + (-15)] – 20 = -30 – (- 105)

Comments ( 2 )

  1. 5.[x + (-15)] – 20 = -30 – (- 105)
    5 x [x + (-15)] – 20 = -30 – (-105)
    5 x [x + (-15)] – 20 = 75
    5 x [x + (-15)] = 75 + 20
    5 x [x + (-15)] = 95
    x + (-15) = 95 : 5
    x + (-15) = 19
    x = 19 – (-15)
    x = 34
    Cho mình xin câu trả lời hay nhất nhé!

  2. 5. [x+(-15)]-20=-30-(-105)
    x-15-20=75
    x-35=75
    x=75+35
    x=120
    Vậy x=120

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

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