Odpowiedzi

2010-04-11T17:17:53+02:00
{x + y = 29
{x+5=y

{x=29-y
{(29-y)+5 =y

{x=29-y
{34=2y |:2

{x=29-y
{y=17

x= 29-17=12

iloczyn: 17 * 12 = 204