Odpowiedzi

2010-03-24T15:02:38+01:00
4(t-1)=t+5
4t-4=t+5
4t-t=5+4
3t=9
t=3
2010-03-24T15:02:45+01:00
4(t-1)=t+5
4t-4=t+5
3t=9
t=3
2010-03-24T15:03:33+01:00
4(t-1)=t+5
4t - 4 = t + 5
4t - t = 5 + 4
3t = 9 | :3
t = 3