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

Toán Lớp 6: 15 + x = -19 x – 15 = -24 x + 11 = -25 (-10) – x = -23

Toán Lớp 6: 15 + x = -19
x – 15 = -24
x + 11 = -25
(-10) – x = -23

Comments ( 1 )

  1. 15+x=-19
    x=-19-15
    x=-34
    x-15=-24
    x=-24+15
    x=-9
    x+11=-25
    x=-25-11
    x=-36
    (-10)-x=-23
    x=(-10)-(-23)
    x=13
     

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

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