3x/5 - x/15= 9/10 minta tolong dong

3x/5-x/15 = 9/10

samakan penyebut 

3(3x)/15 - x/15
= 9x/15 - x/15
= 8x /15

8x/15 = 9/10
=8x/15 - 9/10
=16x/30 - 27/30
=16x-27
=16x = 27

x = 27/16

maaf jika ada kesalahan :)