Реши уравнения: (2. 7/9 + y) - 3, 4/9=1, 8/9
(2.7/9+y)-3.4/9=1.8/9 2.7/9+y=1.8/9+3.4/9 2.7/9+y=5.2/9 y=5.2/9-2.7/9 y=2.5/9