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

Toán Lớp 7: `-` $\dfrac{7}{15}$ `x + ` $\dfrac{5}{6}$ `=` $\dfrac{1}{4}$

Toán Lớp 7: – $\dfrac{7}{15}$ x + $\dfrac{5}{6}$ = $\dfrac{1}{4}$

Comments ( 2 )

  1. -7/15x + 5/6 = 1/4
    $\Rightarrow$ -7/15x = 1/4 – 5/6
    $\Rightarrow$ -7/15x = -7/12
    $\Rightarrow$ x = -7/12 : {-7}/15
    $\Rightarrow$ x = 5/4
    $\text{Vậy}$ x = 5/4

  2. Giải đáp+Lời giải và giải thích chi tiết:
     -7/15x+5/6=1/4
    ⇒ -7/15x=1/4-5/6
    ⇒-7/15x=-7/12
    ⇒ x=-7/12:-7/15
    ⇒ x= -7/12.15/-7
    ⇒ x=5/4
     Vậy x=5/4
    HỌC TỐT!!

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

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