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

Toán Lớp 5: a)27-x/35=5/7. b)x+15/34=13/17 Các bạn giúp mk với ạ

Toán Lớp 5: a)27-x/35=5/7. b)x+15/34=13/17
Các bạn giúp mk với ạ

Comments ( 2 )

  1. a,
    27-x/35=5/7
     x/35=27-5/7
    x/35=144/7
    x/35=720/35
    =>x=720
    b,
    x+15/34=13/17
    x=13/17-15/34
    x=11/34

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

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