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

Toán Lớp 7: 5/3x+11/6=1/4x-3/4 Bạn giúp mình nha????

Toán Lớp 7: 5/3x+11/6=1/4x-3/4
Bạn giúp mình nha????

Comments ( 2 )

  1. \qquad 5/3x+11/6=1/4x-3/4
    <=> 5/3x-1/4x=-3/4-11/6
    <=> 17/12x=-31/12
    <=> x=-31/12:17/12
    <=> x=-31/17
    Vậy x=-31/17
     

  2. Giải đáp:
    $x = \dfrac{-31}{17}$
    Lời giải và giải thích chi tiết:
    $ \dfrac{5}{3}x + \dfrac{11}{6} = \dfrac{1}{4}x – \dfrac{3}{4}$
    $ \dfrac{5}{3}x – \dfrac{1}{4}x = – \dfrac{3}{4} – \dfrac{11}{6} $
    $\dfrac{17}{12}x = -\dfrac{31}{12}$
    $x = \dfrac{-31}{17}$

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