Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

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

Toán Lớp 6: 25 bé hơn x – 39 bé hơn 54.Giúp em với ạ

Toán Lớp 6: 25 bé hơn x – 39 bé hơn 54.Giúp em với ạ

Comments ( 2 )

  1. 25 < x – 39 < 54
    25 + 39 < x – 39 + 39 < 54 + 39
    64 < x < 93
    => x = 65 ; 66 ; 67 ; 68 ; 69 ; 70 ; 71 ; 72 ; 73 ; 74 ; 75 ; 76 ; 77 ; 78 ; 79 ; 80 ; 81 ; 82 ; 83 ; 84 ; 85 ; 86 ; 87 ; 88 ; 89 ; 90 ; 91 ; 92
    #dtkc
     

  2. ☆ Hướng Dẫn ☆
    Ta có :
    25<x-39<54
    ↔️25+39<x-39+39<54+39
    ↔️64<x<93
    =>x={65;66;67;68;69;…;92}

Leave a reply

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

About Nhân