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

Toán Lớp 7: 25 : 5 mu x = 5 ( x la so tu nhien )

Toán Lớp 7: 25 : 5 mu x = 5 ( x la so tu nhien )

Comments ( 2 )

  1. 25 : 5 mũ x = 5
    25x = 5.5
    25x= 25
    x= 25: 25
    x=1
    => 5 mũ x = 5 mũ 1

  2. 25 : 5^x = 5

     5^x=25:5

    5^x=5

    5^x=5^1

    =>x=1 

    Vậy: x=1

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