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 7: cho mình hỏi bài 213.x=x231-3x

Toán Lớp 7: cho mình hỏi bài 213.x=x231-3x

Comments ( 1 )

  1.     213 . x = x . 231 – 3x
    ⇒ x . 231 – 213 . x = 3x
    ⇒ x ( 231 – 213 ) = 3x
    ⇒ x . 18 = 3 . x
    Nếu x $\neq$ 0 thì x . 18 = 3 . x ( không thỏa mãn )
    ⇒ x = 0
    Vậy x = 0.
    *Hok tốt!

Leave a reply

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

About Lan Lan