(38/13 - x) + 2 2/13 = 5

38/13 - x = 5 - 2 2/13

38/13 - x = 65/13 - 4/13

38/13 - x = 61/13

-x = 61/13 - 38/13

-x = 23/13

x = -23/13

Ответ: x = -23/13