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

Toán Lớp 6: 5x + 25 = = 0 (-135) : x – 75 = -70

Toán Lớp 6: 5x + 25 = = 0
(-135) : x – 75 = -70

Comments ( 2 )

  1. Giải đáp:
    5x + 25 = 0
    -> 5x = 0 – 25
    -> 5x = -25
    -> x = (-25) : 5
    -> x = -5
    Vậy x = -5
    ————–
    (-135) : x – 75 = -70
    -> (-135) : x = -70 + 75
    -> (-135) : x = 5
    -> x = (-135) : 5
    -> x = -27
    Vậy x = -27
    #dariana 

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