rozwiaz uklad rownan. a/ { -x+2y=4 { 2x-3y = 0
{ -x+2y=4 /*2
{ 2x-3y = 0
-2x + 4y = 8
2x - 3y = 0
---------------
y = 8
-x + 2y = 4
-x + 16 = 4
-x = -12
x = 12
x=2y-4
2(2y-4) -3y=0
4y - 8 - 3y=0
y=8
x=12
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{ -x+2y=4 /*2
{ 2x-3y = 0
-2x + 4y = 8
2x - 3y = 0
---------------
y = 8
-x + 2y = 4
-x + 16 = 4
-x = -12
x = 12
x = 12
y = 8
x=2y-4
2(2y-4) -3y=0
x=2y-4
4y - 8 - 3y=0
x=2y-4
y=8
y=8
x=12