giúp mình điiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

`3/5 - (47/20 - 2x) . 2/15 = 3/10`

`<=> (47/20 - 2x) . 2/15 = 3/5 - 3/10`

`<=> (47/20 - 2x) . 2/15 = 3/10`

`<=> 47/20 - 2x = 3/10 : 2/15`

`<=> 47/20 - 2x = 9/4`

`<=> 2x = 47/20 - 9/4`

`<=> 2x = 1/10`

`<=> x = 1/10 : 2`

`<=> x = 1/20`

Vậy `x = 1/20`