(8/15 + 2/9у) : 3/5 = 2
(8/15 + 2/9у) × 5/3 = 2
8/9 + 10/27у = 2
24 + 10у = 54
10у = 54 - 24
10у = 30
у = 30 ÷ 10
у = 3
(8/15 + 2/9у) : 3/5 = 2
(8/15 + 2/9у) × 5/3 = 2
8/9 + 10/27у = 2
24 + 10у = 54
10у = 54 - 24
10у = 30
у = 30 ÷ 10
у = 3