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

Toán Lớp 7: Tìm x $\frac{-12}{25}$ = $\frac{x}{5}$

Toán Lớp 7: Tìm x
$\frac{-12}{25}$ = $\frac{x}{5}$

Comments ( 2 )

  1. Giải đáp:
     
    Lời giải và giải thích chi tiết:
    $\dfrac{-12}{25}$ = $\dfrac{x}{5}$ $\\$ $\Longrightarrow$ $\text{-12.5=25.x}$ $\\$ $\Longrightarrow$ $\text{-60=25.x}$ $\\$ $\Longrightarrow$ $\text{x= -60:25 = -2,4}$
     

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

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