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

Toán Lớp 7: helpppppppppppppppppppppppppp 3x – 9=0

Toán Lớp 7: helpppppppppppppppppppppppppp
3x – 9=0

Comments ( 2 )

  1. 3x – 9 = 0
    => 3x = 9
    => x = 9 : 3
    => x = 3
    Vậy : x = 3
     

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