Решите уравнение 13 7/18-x=2 5/12+ 7 2/12
13 7/18 - Х = 2 5/12 + 7 2/12 13 7/18 - Х = 9 7/12 Х = 13 7/18 - 9 7/12 Х = 13 14/36 - 9 21/36 Х = 12 50/36 - 9 21/36 Х = 3 29/36