Odpowiedzi

2010-02-03T16:49:22+01:00
{2(x-2)=5+Y
{x-y=3 /-x
{2x-4=5-y /+4
{-y=3-x
{2x=9-y
{-y=3-x
{2x=7 /:2
{-y=3-x
{x=3,5
{-y=3-x
{x=3,5
{-y=1
{x=3,5
{y=-1
2010-02-03T19:33:48+01:00