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

Toán Lớp 7: x+1/2=2^5:2^3 Ai làm đúng mính sẽ tick

Toán Lớp 7: x+1/2=2^5:2^3
Ai làm đúng mính sẽ tick

Comments ( 2 )

  1. #Sad
    x+1/2 = 2^5 : 2^3
    ⇔ x+1/2 = 2^(5-3)
    ⇔ x+1/2 = 2^2
    ⇔ x+1/2 = 4
    ⇔ x = 7/2
    \text{Vậy} x=7/2

  2. x + 1/2 = 2^5 : 2^3
    ⇔ x + 1/2 = 2^2 = 4
    ⇒ x = 4 – 1/2
    ⇒ x = 7/2
    Vậy  S = {7/2}

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