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

Toán Lớp 6: Tìm x : `-x – 3/6 = -1/12 + 2x`

Toán Lớp 6: Tìm x : -x – 3/6 = -1/12 + 2x

Comments ( 2 )

  1. -x – 3/{6} = -1/{12} + 2x
    -x – 1/{2} = -1/{12} + 2x
    -x = -1/{12} + 2x + 1/{2} 
    -x = 2x + 5/{12}
    -3x = 5/{12}
    x = 5/{12} : -3
    x = -5/{36}
    Vậy x = -5/{36}
     

  2. Giải đáp:
     
    Lời giải và giải thích chi tiết:
    -x – 3/6 = -1/12 + 2x
    -> -x – 1/2 = -1/12 + 2x
    -> -x = -1/12 + 2x + 1/2
    -> -x = 2x + 5/12
    -> -3x = 5/12
    -> x = -5/36
    Vậy x \in {-5/36}

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

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