Odpowiedzi

2010-03-25T13:59:34+01:00
2t-(3t+1)=6
2t-3t-1=6
-t=7 |: (-1)
t=-7
1 5 1
2010-03-25T14:03:54+01:00
2T-(3T+1)=6
2T-3T-1=6
-1T=7
T=-7
1 5 1