The question is to determine whether the following vectors are linearly dependent or linearly independent.

The vectors are

{(1, 2, 3, 4), (2, 3, 4, 5), (3, 4, 5, 6), (4, 5, 6, 7)}

I put into matrix form and do gauss elimination on it

From here I'm not sure how to intepret it, for whether it is dependent or independent. Answer say it is linearly dependent