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

Toán Lớp 5: 2. Tìm x a)x + 81,74 = 103,05 – 9,47 b) (x – 15,2) + 7,69 = 21,43 Giúp mình với ạ

Toán Lớp 5: 2. Tìm x
a)x + 81,74 = 103,05 – 9,47
b) (x – 15,2) + 7,69 = 21,43
Giúp mình với ạ

Comments ( 2 )

  1. a, x + 81,74 = 103,05 – 9,47
       x + 81,74 = 93,58
       x = 93,58 – 81,74
      x =11,84
    b) (x – 15,2) + 7,69 = 21,43
       x – 125 = 21,43 – 7,69
      x – 125 = 13,74
      x = 13,74 + 125
     x=138,74
    #nhớ cho mình trả lời hay nhất nhé

  2. a)x+81,74=103,05-9,47
    x+81,74=93,58
    x=93,58-81,74
    x=11,84
    b)(x-15,2)+7,69=21,43
    (x-15,2)=21,43-7,49
    x-15,2=13,94
    x=13,94+15,2
    x=29,14

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

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