Odpowiedzi

2010-03-08T20:02:12+01:00
9x+2=-7
9x=-7-2
9x=-9/9
x=-1
1 5 1
2010-03-08T20:02:16+01:00
9x +2 = -7 |-2
9x = -9 |:9
x = -1
1 5 1
2010-03-08T20:02:46+01:00
9x+2=-7
9x=-7-2
9x=-9
x=-1
pozdrawiam:)
1 5 1