Odpowiedzi

2010-02-08T19:34:43+01:00
6y+30=-2y-2
6y+2y=-2-30
8y=-32
y=-4
2010-02-08T19:34:52+01:00
6y+30=-2y-2
6y+2y=-2-30
8y=-32 /8
y=-4
2010-02-08T19:34:58+01:00
6y+30=-2y-2 |-2y
8y+30=-2 |-30
8y=-32 |/8
y=-4