15,2 : (2-Х) =4 2/9 :2 4/9 по правилу пропорции
15,2 х 2 4/9 = 4 2/9(2-Х)
15 2/10 х 2 4/9 = 4 2/9( 2-Х)
76/5 х 22/9 = 76/9 - 38/9Х
38/9Х = -1672/45 +76/9
38/9Х = - 1292/45
Х = -1292/45 : 38/9 = -1292/45 х 9/38
Х = - 34/5 = - 6 4/5
15,2 : (2-Х) =4 2/9 :2 4/9 по правилу пропорции
15,2 х 2 4/9 = 4 2/9(2-Х)
15 2/10 х 2 4/9 = 4 2/9( 2-Х)
76/5 х 22/9 = 76/9 - 38/9Х
38/9Х = -1672/45 +76/9
38/9Х = - 1292/45
Х = -1292/45 : 38/9 = -1292/45 х 9/38
Х = - 34/5 = - 6 4/5