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

Toán Lớp 6: Bạn ơi cho mình hỏi nhe 70-5.(x-3)=45

Toán Lớp 6: Bạn ơi cho mình hỏi nhe 70-5.(x-3)=45

Comments ( 2 )

  1. 70-5.(x-3)=45
    ->5(x-3)=70-45
    ->5(x-3)=25
    ->x-3=25:5
    ->x-3=5
    ->x=5+3
    ->x=8
    Vậy x=8
     

  2. 70 – 5( x – 3) = 45
    5( x – 3) = 70 – 45
    5( x – 3) = 25
    ( x – 3) = 25 : 5
    x – 3 = 5
    x = 5 + 3
    x = 8
    Vậy x = 8
    #caty09

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