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

Toán Lớp 6: 5(x+2)-12=48 Giúp mik vs, thanks

Toán Lớp 6: 5(x+2)-12=48
Giúp mik vs, thanks

Comments ( 2 )

  1. 5(x+2)-12=48
    ⇔5x+10-12=48
    ⇔5x=48+2
    ⇔5x=50
    ⇔x=10
     

  2. 5 . (x + 2) – 12 = 48
    => 5 . (x + 2) = 48 + 12
    => 5 . (x + 2) = 60
    => x + 2 = 60 : 5
    => x + 2 = 12
    => x = 12 – 2
    => x = 10
    Vậy x = 10

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