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

Toán Lớp 6: 2^8^-x + 75 = 107 mn giúp mình

Toán Lớp 6: 2^8^-x + 75 = 107 mn giúp mình

Comments ( 2 )

  1. 2^(8-x) + 75 = 107
    2^(8-x) = 107-75
    2^(8-x) = 2^5
    8-x=5
    x=8-5
    x=3
    Vậy x=3   

  2. 2^(8-x) + 75 = 107
    => 2^(8-x) = 107 – 75
    => 2^(8-x) = 32
    => 2^(8-x) = 2^5
    => 8 – x = 5
    => x = 8 – 5
    => x = 3
    Vậy x = 3
     

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

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