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

Toán Lớp 5: 1/tìm x biết: 182/9 : x = 91/4 2/tìm x biết 9/6 x (x – 5/3)+ 3/2 x 5/3=3 giúp mình với nha. đây là nick của anh mình nhé mg

Toán Lớp 5: 1/tìm x biết: 182/9 : x = 91/4
2/tìm x biết 9/6 x (x – 5/3)+ 3/2 x 5/3=3
giúp mình với nha. đây là nick của anh mình nhé mg

Comments ( 2 )

  1. $\text{1)}$$\frac{182}{9}:x=$ $\frac{91}{4}$
    $\text{x=}$$\frac{182}{9}:$ $\frac{91}{4}$
    $\text{x=}$$\frac{182}{9}.$ $\frac{4}{91}$
    $\text{x=}$$\frac{8}{9}$
    $\text{b) }$$\frac{9}{6}.(x-$ $\frac{5}{3})+$ $\frac{3}{2}.$ $\frac{5}{3}=3$
    $\text{}$$\frac{9}{6}.(x-$ $\frac{5}{3})+$ $\frac{5}{2}=3$
    $\text{}$$\frac{9}{6}.(x-$ $\frac{5}{3})=3-$ $\frac{5}{2}$
    $\text{}$$\frac{9}{6}.(x-$ $\frac{5}{3})=$ $\frac{1}{2}$
    $\text{x-}$$\frac{5}{3}=$ $\frac{1}{2}:$ $\frac{9}{6}$
    $\text{x-}$$\frac{5}{3}=$ $\frac{1}{2}.$ $\frac{6}{9}$
    $\text{x-}$$\frac{5}{3}=$ $\frac{1}{3}$
    $\text{x=}$$\frac{5}{3}+$ $\frac{1}{3}$
    $\text{x=}$$\frac{6}{3}$
    $\text{x=2}$
    $\text{#mct}$

  2. 1) 182/9 : x = 91/4
    x = 182/9 : 91/4
    x = 182/9 * 4/91
    x = 2/9 * 4
    x = 8/9
    2) 9/6 * ( x – 5/3 ) + 3/2 * 5/3 = 3
    9/6 * x – 9/6 * 5/3 + 3/2 * 5/3 = 3
    9/6 * x – 5/3 * ( 9/6 + 3/2 ) = 3
    9/6 * x – 5/3 * ( 9/6 + 9/6 ) = 3
    9/6 * x – 5/3 * 18/6 = 3
    9/6 * x – 5/3 * 3 = 3
    9/6 * x – 5 = 3
    9/6 * x = 3 + 5
    9/6 * x = 8
    x = 8 : 9/6
    x = 8 * 6/9
    x = 48/9
    x = 16/3
    P/S: Mik thay dấu nhân thành dấu sao nhe:))
    Xin ctlhn đc khum ???

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