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

Toán Lớp 6: tìm số nguyên x biết 9.(x+28)=0

Toán Lớp 6: tìm số nguyên x biết
9.(x+28)=0

Comments ( 2 )

  1. 9( x + 28 ) = 0
    x + 28 = 0 : 9
    x + 28 = 0
    x = 0 – 28
    x = -28
    – Vậy x = -28
    @Tina 

  2. 9.(x+28)=0
    (x+28)=0:9
    x+28=0
    x=0-28
    x=(-28)
     

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