Odpowiedzi

2010-04-09T19:22:53+02:00
2x-3y=6
4-2x=6-y

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

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

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

2x-6-6x=6
y=2+2x

-4x=12 | :(-4)
y=2+2x

x=-3
y=2-6

x=-3
y=-4
2010-04-09T19:23:36+02:00
2x-3x=6
-1x=6
x=-6

4-2x=6-x
2x+x=6-4
3x=2
1x=0,6
2010-04-09T19:26:44+02:00
2x=6+3y/:2
4-2x=6-y

x=3+1,5y
4-2*(3+1,5y)=6-y

x=3+1,5y
4-6-3y=6-y

x=3+1,5y
-3y+y=6+6-4

x=3+1,5y
-2y=8/:(-2)

x=3+1,5y
y=-4

x=3+1,5*-4
y=-4

x=3+6
y=-4

x=9
y=-4