transgalactic
Junior Member
- Joined
- Nov 20, 2008
- Messages
- 58
the question and the solution in this link: (you can enlarge by one click on it)
http://img139.imageshack.us/img139/4074/29783975xs2.gif
the key of solving these question is picking the variables
i dont know how they decided to pick those variables???
http://img139.imageshack.us/img139/4074/29783975xs2.gif
the key of solving these question is picking the variables
i dont know how they decided to pick those variables???