Odpowiedzi

2010-04-12T10:48:33+02:00
Metodą podstawiania
{2x-6y=3(x-1)
{2(x+1)=3(2-2y)+2

{2x+3(x-1)+6y
{2x+3=3(2-2y)+2

{2x=3x-3+6y
{2x+3+3(2-2y)+2

{x=3-6y
{2x+3=3(2-2y)+2

2(3-6y)+3=3(2-2y)+2
6-12y+3=6-6y+2
9-12y=8-6y
-12y+6y=8-9
-6y=-1
6y=1
y=1/6

{y=1/6
{x=3-6y

{y=1/6
{x=3-6*1/6

{y=1/6
{x=2