x * (500 : 100) = 125
x * 5 = 125
x = 125 : 5
x = 25
ПРОВЕРКА:
25 * (500 : 100) = 125
25 * 5 = 125
125 = 125
ОТВЕТ: 25
x * (500 : 100) = 125
x * 5 = 125
x = 125 : 5
x = 25
ПРОВЕРКА:
25 * (500 : 100) = 125
25 * 5 = 125
125 = 125
ОТВЕТ: 25