Tìm y y – 3/2 = 4/5 3/8 – y = 4/7 12/5 x y = 8

2 bình luận về “Tìm y y – 3/2 = 4/5 3/8 – y = 4/7 12/5 x y = 8”

1. y – 3/2 = 4/5

   y          = 4/5 + 3/2

   y          = 8/10 + 15/10

   y          = 23/10

   Vậy y = 23/10

   ____________________

   3/8 – y = 4/7

            y = 3/8 – 4/7

            y = 21/56 – 32/56

            y = (-11)/56

   Vậy y = (-11)/56

   ______________________

   12/5 xx y = 8

               y  = 8 : 12/5

               y = 8 xx 5/12

               y = 10/3

   Vậy y = 10/3

    

   Trả lời
2. y – 3/2 = 4/5

   => y = 4/5 + 3/2

   => y = 8/10 + 15/10

   => y= 23/10

   Vậy y=23/10

   $\\$

   3/8 – y = 4/7

   => y = 3/8 – 4/7

   => y = 21/56 – 32/56

   => y = (-11)/56

   Vậy y=(-11)/56

   $\\$

   12/5 xx y = 8

   => y = 8 : 12/5

   => y = 8 xx 5/12

   => y = 10/3

   Vậy y=10/3

    

    

   Trả lời