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

Toán Lớp 6: Tìm x. Biết 6.(x+5)=3mu 2.(-4)

Toán Lớp 6: Tìm x. Biết
6.(x+5)=3mu 2.(-4)

Comments ( 2 )

  1. 6 . (x + 5) = $3^{2}$ . (-4)
    6 . (x + 5) = 9 . (-4)
    6 . (x + 5) = -36
         (x + 5) = -36 : 6
          x + 5  = -6
          x         = -6 – 5
          x         = -11
          
     

  2. Answer
    6 . (x + 5) = 3^2 . (-4)
    => 6 . (x + 5) = 9 . (-4)
    => 6 . (x + 5) = -36
    => (x + 5) = -36 : 6
    => x + 5 = -6
    => x = -6 – 5
    => x = -11
    Vậy x = -11

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