Question

 

 

3/20+\(\dfrac{1}{2}\) -x]chia \(\dfrac{32}{9}\) =\(\dfrac{21}{128}\) giup em voi em dang gap

Answer 1

( 3/20 + 1/2 - x) : 32/9 = 21/128

= 3/20 + 1/2 - x = 21/128 x 32/9

=  3/20 + 1/2 - x = 7/12

=  1/2 - x = 7/12 - 3/20

= 1/2 - x  = 13/30

= x = 1/2 - 13/30

= x = 1/15

Answer 2

`(3/20 + 1/2-x) : 32/9 = 21/128`

`3/20 + 1/2-x= 21/128 xx 32/9`

`3/20 + 1/2-x = 7/12`

`3/20 + 10/20 - x = 7/12`

`13/20 - x =7/12`

`x=13/20 - 7/12`

`x=1/15`

Vậy `x=1/15`