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

Toán Lớp 6: Tìm x a, (x -5) . 3=24 b, x.3+13=73

Toán Lớp 6: Tìm x
a, (x -5) . 3=24
b, x.3+13=73

Comments ( 2 )

  1. ~ Bạn tham khảo ~
    a, (x-5) . 3= 24
    x-5 = 24 : 3
    x-5 = 8
    x = 8 + 5
    x=13
    Vậy x = 20
    b, x . 3 + 13 = 73
    x . 3 = 73 – 13
    x.3 = 60
    x = 60 : 3
    x = 20
    Vậy x = 20
    $#Vịt vàng$

  2. a) (x-5).3=24
    ⇔x-5=24:3
    ⇔x-5=8
    ⇔x=8+5
    ⇔x=13
    Vậy x=13
    b) x.3+13=73
    ⇔x.3=73-13
    ⇔x.3=60
    ⇔x=60:3
    ⇔x=20
    Vậy x=20
     

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