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

Toán Lớp 6: Tìm x biết : 2⁴:(x+1)+2=6 giải nhanh nha

Toán Lớp 6: Tìm x biết : 2⁴:(x+1)+2=6 giải nhanh nha

Comments ( 2 )

  1. \text{}$2^{4}:(x+1)+2=6$
    \text{}$2^{4}:(x+1)=6-2$
    \text{}$2^{4}:(x+1)=4$
    \text{x+1=}$2^{4}:4$
    \text{x+1=16:4}
    \text{x+1=4}
    \text{x=4-1}
    \text{x=3}
    \text{#mct}

  2. 2^4: (x+1)+2=6
    ⇔16: (x+1)=6-2
    ⇔16: (x+1)=4
    ⇔x+1=16:4
    ⇔x+1=4
    ⇔x=4-1
    ⇔x=3
    Vậy x=3
    $_Ativity_$
     

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

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