х + 5/23 = 19/23
х = 19/23 - 5/23
х = 14/23
14/23 + 5/23 = 19/23
19/23 = 19/23
х - 15/28 = 3/28
х = 15/28 + 3/28
х = 18/28
18/28 - 15/28 = 3/28
3/28 = 3/28
х + 17/35 = 23/35
х = 23/35 - 17/35
х = 6/35
6/35 + 17/35 = 23/35
23/35 = 23/35
31/35 - у = 11/35
у = 31/35 - 11/35
у= 20/35
31/35 - 20/35 = 11/35
11/35 = 11/35
8/17 + у = 16/17
у = 16/17 - 8/17
у = 8/17
8/17 + 8/17 = 16/17
16/17 = 16/17
47/48 - х = 31/48
х = 47/48 - 31 /48
х = 16/48
47/48 - 16/48 = 31/48
31/48 = 31/48
