Odpowiedzi

2009-12-07T19:26:52+01:00
2x+3y=14/3y
3x-2y=8

2x=14-3y/:2
3x-2y=8

x=7-1,5y
3*(7-1,5y)-2y=8

x=7-1,5y
21-4,5y-2y=8

x=7-1,5y
21-6,5y=8/-21

x=7-1,5y
-6,5y=-13/:(-6,5)

x=7-1,5y
y=2

x=7-1,5*2
y=2

x=4
y=2
2009-12-07T19:30:10+01:00
2x+3y=14
3x-2y=8

4x+6y=28
9x-6y=24

13x=52
x=4

2(razy)4+3y=14
8+3y=14
3y=14-8
3y=6
y=2
x=4