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

Toán Lớp 7: $\dfrac{x + 11}{12}$ = $\dfrac{5}{3}$ giúp em với ạ

Toán Lớp 7: $\dfrac{x + 11}{12}$ = $\dfrac{5}{3}$
giúp em với ạ

Comments ( 2 )

  1. (x + 11)/12 = 5/3
    x + 11 = (12 . 5)/3 = 20
    x + 11 = 20
             x = 20 – 11
             x = 9
    Vậy x = 9

  2. Xuu ????
    $\dfrac{x + 11}{12}$ = $\dfrac{5}{3}$ .
    ( $\text{x}$ + 11 × 3 ) = 12 × 5 = 60 .
    $\text{x}$ + 11 = 60 ÷ 3 = 20 .
    $\text{x}$ = 20 – 11 = 9 .
     

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