9 5/36 - х = 2 3/16
х = 9 5/36 - 2 3/16
х = 9 20/144 - 2 27/144
х = 8 164/144 - 2 27/144
х = 6 137/144
Проверка: 9 20/144 - 6 137/144 = 8 164/144 - 6 137/144 = 2 27/144 = 2 3/16
х - 5 17/60 = 7 9/20
х = 7 9/20 + 5 17/60
х = 7 27/60 + 5 17/60
х = 12 44/60
х = 12 11/15
Проверка: 12 44/60 - 5 17/60 = 7 27/60 = 7 9/20
