Ответ:

8

Пошаговое объяснение:

(х/2 + 3/4)/(9 1/2) + 1/2 = 1

(х/2 + 3/4)/9 1/2 = 1 - 1/2

(х/2 + 3/4)/9 1/2 = 1/2

х/2 + 3/4 = 1/2 * 9 1/2

х/2 + 3/4 = 1/2 * 19/2

х/2 + 3/4 = 19/4

х/2 = 19/4 - 3/4

х/2 = 16/4

х/2 = 4

х = 4 * 2

х = 8