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

Toán Lớp 6: 2x-2^0=3^5:3^3 làm hộ nhanh nhá

Toán Lớp 6: 2x-2^0=3^5:3^3 làm hộ nhanh nhá

Comments ( 2 )

  1. 2x-2^0=3^5:3^3
    <=> 2x-2^0=3^{5-3}
    <=> 2x-1=3^2
    <=> 2x-1=9
    <=> 2x=10
    <=> x=5
    Vậy x=5

  2. \text{*Ta có:2x-}$2^{0=}$ $3^{5}:$ $3^{3}$
    \text{2x-1=}$3^{5-3}$
    \text{2x-1=}$3^{2}$
    \text{2x-1=9}
    \text{2x=9+1}
    \text{2x=10}
    \text{x=10:2}

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