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

Toán Lớp 6: (14/5 nhân x trừ 50) : 2/3 = 51 ( tìm x )

Toán Lớp 6: (14/5 nhân x trừ 50) : 2/3 = 51 ( tìm x )

Comments ( 2 )

  1. (14/5 · x – 50) $\text{: $\dfrac{2}{3}$ = 51}$
    $\text{⇒}$ 14/5x $\text{- 50 = 51 · $\dfrac{2}{3}$}$ 
    $\text{⇒}$ 14/5x $\text{- 50 = 34}$
    $\text{⇒}$ 14/5x $\text{= 34 + 50}$
    $\text{⇒}$ 14/5x $\text{= 84}$
    $\text{⇒ x = 84 ÷ $\dfrac{14}{5}$}$
    $\text{⇒ x = 84 · $\dfrac{5}{14}$}$
    $\text{⇒ x = 30}$
    $\text{Vậy x = 30}$

  2. Đây nhé,mong bạn cho mk HAY NHẤT nhé và5 sao
    toan-lop-6-14-5-nhan-tru-50-2-3-51-tim

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