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

Toán Lớp 6: Tìm x biết (-5).(x-2)=-2.(-15)-Làm giúp e ặ

Toán Lớp 6: Tìm x biết (-5).(x-2)=-2.(-15)….Làm giúp e ặ

Comments ( 2 )

  1. (-5).(x-2)= -2.(-15)
    (-5).(x-2)= 30
    x-2= 30:(-5)
    x-2= -6
    x= -6+2
    x= -4
    #namOvO

  2. $\text{( -5 ) . ( x – 2 ) = -2 . ( -15 )}$
    $\text{( -5 ) . ( x – 2 ) = 30}$
    $\text{x – 2 = 30 : ( -5 )}$
    $\text{x – 2 = -6}$
    $\text{x = ( -6 ) + 2}$
    $\text{x = -4}$
    $\text{Vậy x = -4}$

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

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