give an example for a set of linear equation (from field R) that has the following
general solution:

http://img244.imageshack.us/img244/5226/26420883un6.gif

??

i wrote a matrix
and inputed alpha=1 and beta=2
and this is my answer
is that ok?

i need to give an example so the set that i was given
would be its general solution(i guess i need to present one case)
i have constructed this general matrix:

1 a b
2 a b
3 a 0


and inputed some a=1 b=2

but i am not sure if this the correct way of solving it??