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

Toán Lớp 6: 25+3(x-8)=106; 2(x-51)=2.2^3+20 Giải hộ mình sẽ cho 5 sao

Toán Lớp 6: 25+3(x-8)=106; 2(x-51)=2.2^3+20
Giải hộ mình sẽ cho 5 sao

Comments ( 2 )

  1. $\text{ @HV }$
    $\text{ a) 25 + 3.(x – 8) = 106 }$
    $\text{ ⇒ 3.(x – 8) = 81 }$
    $\text{ ⇒ x – 8 = 27 }$
    $\text{ ⇒ x = 35 }$
    Vậy x = 35
    $\text{ 2.(x – 51) = 2. $2^{3}$ + 20 }$
    $\text{ ⇒ 2.(x – 51) = 36 }$
    $\text{ ⇒ x – 51 = 18 }$
    $\text{ ⇒ x = 69 }$
    Vậy x = 69
     

  2. 25+3(x-8)=106
    => 3(x-8) = 106 – 25
    => 3(x-8)=81
    => x-8=81:3
    => x – 8 =27
    => x = 27 + 8
    => x = 35
    Vậy …
    2(x-51)=2. 2^3 +20
    => 2(x-51) = 2 . 8 + 20
    => 2(x-51) = 36
    => x-51=36:2
    => x – 51 = 18
    => x = 18+51
    => x = 69
    Vậy …
     

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

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