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

Toán Lớp 6: (-5) + x = 7 Giúp mik vs.Mik vote 5*+ctlhn ạ.

Toán Lớp 6: (-5) + x = 7 Giúp mik vs.Mik vote 5*+ctlhn ạ.

Comments ( 2 )

  1. ( – 5 ) + x = 7
    x = 7 – ( – 5 )
    x = 7 + 5
    x = 12
    $\text{Vậy x = 12}$

  2. (-5)+x=7
    <=>x=7+5
    <=>x=12
    Vậy x=12

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