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

Toán Lớp 6: 750:{130-[(5.14-65)³+3]} 5.(x – 3)= 45

Toán Lớp 6: 750:{130-[(5.14-65)³+3]}

5.(x – 3)= 45

Comments ( 2 )

  1. $\text{750 : { 130 – [( 5 . 14 – 65)³ + 3]} }$
    $\text{= 750 : { 130 – [( 70 – 65 )³ + 3]} }$
    $\text{= 750 : { 130 – [ 5³ + 3 ]} }$
    $\text{= 750 : { 130 – [ 125 + 3 ]} }$
    $\text{= 750 : { 130 – 128 } }$
    $\text{= 750 : 2 }$
    $\text{= 375 }$
    _________________________
    $\text{5 . ( x – 3 ) = 45}$
    $\text{x – 3 = 45 : 5}$
    $\text{x – 3 = 9}$
    $\text{x = 9 + 3}$
    $\text{x = 12}$
    $\text{Vậy x = 12}$
    #banhquyy
     

  2. Giải đáp + Lời giải và giải thích chi tiết:
    1) 750 :{130 – [(5.14 – 65)^3 + 3]}
    = 750 :{130 – [(70 – 65)^3 + 3]}
    = 750 :{130 – [5^3 + 3]}
    = 750 :{130 – [125 + 3]}
    = 750 :{130 – [125 + 3]}
    = 750 :{130 – 128}
    = 750 :2
    = 375
    2) 5.(x – 3) = 45
            x – 3 = 45 : 5
            x – 3 = 9
            x      = 9 + 3
            x      = 12
    Xin 5 sao và hay nhất nha

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

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