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

Toán Lớp 6: x+3x=100==–…

Toán Lớp 6: x+3x=100……………………………..

Comments ( 2 )

  1. x + 3x = 100
    ⇒4x       = 100
    ⇒x         = 100 : 4
    ⇒x         =   25.

  2. x + 3x = 100
    x . (1 + 3) = 100
    x . 4 = 100
    x = 100 : 4
    x = 25
    Vậy x = 25
     

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