Odpowiedzi

2010-01-24T09:23:39+01:00
X= 3+ 2 y
-2(3+ 2 y) + y = 0

-6-4y+y=0
-3y=6
y=-2
x=-1
1 5 1
2010-01-24T09:24:52+01:00
X - 2y = 3
-2x + y = 0

x = 3 + 2y
-2(3+2y) + y = 0

x = 3 + 2y
-6 - 4y + y = 0

x = 3 + 2y
-3y = 6 / (: -3)

x = 3 + 2y
y = -2

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

x = -1
y = -2
1 5 1
2010-01-24T09:29:18+01:00
X= 3+ 2 y
-2<razy>(3+ 2 y) + y = 0

-6-4y+y=0
-3y=6/:3
y=-2
x=-1

1 5 1