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

Toán Lớp 4: 429 : (x + 31) = 11 giúp mik với???

Toán Lớp 4: 429 : (x + 31) = 11
giúp mik với???

Comments ( 2 )

  1. 429 : ( x + 31 ) = 11
    x + 31 = 429 : 11
    x + 31 = 39
    x = 39 – 31
    x = 8
     

  2. 429:(x+31)=11
    =>x+31=429:11
    =>x+31=39
    =>x=39-31
    =>x=8
    Vậy x=8
    ————————-
    $\\$
    Thử lại:
    429:(8+31)
    =429:39
    =11

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