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

Toán Lớp 8: Tìm x :=. x/x-2=1/3

Toán Lớp 8: Tìm x :………….
x/x-2=1/3

Comments ( 2 )

  1. $\frac{x}{x-2}$ =$\frac{1}{2}$ ( đk x$\neq$ 2)
    $⇔x-2=3x$
    $⇔x-3x=2$
    $⇔-2x=2$
    $⇔x=-1$ ( t/mãm đk )

  2. đkxđ x$\neq$ 2
    x/(x-2) = 1/3
    <=> 3x = x -2 ( nhân chéo ak)
    <=> 2x = -2
    <=> x = -1
    XIN 5 SAO VS HAY NHẤT Ạ
     

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