20×x/9=4/27 решите уравнение

20*x:9 = 4/27

20x = 36/27

20x = 12/9

x = 12/9*1/20

x = 12/180 = 1/15

Проверка:

20*1/15*1/9 = 20/15*1/9 = 20/135 = 4/27

4/27=4/27, значит, верно