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

Toán Lớp 6: Số nguyên x thoả mãn 60:(-5x)=2 là: A 6 B -24 C 24 D -6

Toán Lớp 6: Số nguyên x thoả mãn 60:(-5x)=2 là:
A 6
B -24
C 24
D -6

Comments ( 2 )

  1. Số nguyên x thoả mãn 60:(-5x)=2 là:
    A 6
    B -24
    C 24
    D -6

    $\longrightarrow$ $\text{60:(-5x)=2}$

    $\longrightarrow$ $\text{-5x=60:2}$

    $\longrightarrow$ $\text{-5x=30}$

    $\longrightarrow$ $\text{x=30:(-5)}$

    $\longrightarrow$  $\text{x=(-6)}$

     

  2. $#AS$

    60 : (-5x) = 2

           -5x   = 60 : 2

           -5x   = 30

              x   = 30 : (-5)

              x   = -6

    => Chọn D

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

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