16 + 48 : z = 40
48 : z = 40 - 16
48 : z = 24
z = 48 : 24
z = 2
Проверка:
16 + 48 : 2 = 40
16 + 24 = 40
40 = 40
16 + 48 : z = 40
48 : z = 40 - 16
48 : z = 24
z = 48 : 24
z = 2
Проверка:
16 + 48 : 2 = 40
16 + 24 = 40
40 = 40