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

Toán Lớp 7: 11+(15-x)=1. Giúp mk nhé ⭐⭐⭐⭐⭐

Toán Lớp 7: 11+(15-x)=1.
Giúp mk nhé ⭐⭐⭐⭐⭐

Comments ( 2 )

  1. Giải đáp:
      11 + ( 15 – x) =1
    => 15- x = 1- 11
    => 15 -x = -10
    => x =  15 – ( -10)
    => x = 15  + 10
    => x = 25
     

  2. 11+(15-x)=1
    15-x=1-11
    15-x=-10
    -x=-10-15
    -x=-25
    x=25
     

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

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