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

Toán Lớp 7: tìm x -3/4x – 3 = 1/4 . x

Toán Lớp 7: tìm x
-3/4x – 3 = 1/4 . x

Comments ( 2 )

  1. -3/4 x – 3 = 1/4 x
    => -3/4 x – 1/4 x = 3
    => x( -3/4 – 1/4) =3
    => -x = 3
    => x= -3
    Vậy x= -3
     

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