4/9-7/12.x=1/3 Ét ô ét -&-

2 bình luận về “4/9-7/12.x=1/3 Ét ô ét -&-”

1. $#phamtrongdatt#

   4/9-7/12.x=1/3

   7/12.x=4/9-1/3

   7/12.x=1/9

   x=1/9:7/12

   x=4/21

    

   Trả lời
2. 4/9 – 7/12x = 1/3

   => 7/12x = 4/9 – 1/3

   => 7/12x = 4/9 – 3/9

   => 7/12x = 1/9

   => x = 1/9 : 7/12

   => x = 1/9 * 12/7

   => x = 4/21

   Vậy x = 4/21

   $# ????????????????????$

   Trả lời