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

Toán Lớp 7: `Tìm\ x:\ x – 20 = 10^2 – 50`

Toán Lớp 7: Tìm\ x:\ x – 20 = 10^2 – 50

Comments ( 2 )

  1. # Z E N
    x-20=10^2-50
    x-20=100-50
    x-20=50
    =>x=50+20
    =>x=70
     

  2. ~ Bạn tham khảo ~
    x-20=10^2-50
    => x-20=100-50
    => x-20 = 50
    => x=50+20
    => x=70
    Vậy x=70

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