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

Toán Lớp 6: Tìm số tự nhiên x , biết: 124+(118-x)= 217

Toán Lớp 6: Tìm số tự nhiên x , biết:
124+(118-x)= 217

Comments ( 2 )

  1. 124 + ( 118 – x) = 217
    ( 118 – x) = 217 – 124
    118 – x =93
    x = 118 – 93
    x = 25
    Vậy x = 25
    #caty09

  2. 124+(118-x)=217
    =>124+118-x=217
    =>(124+118)-x=217
    =>242-x=217
    =>x=242-217
    =>x=25
    Vậy x=25.

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