1. The problem statement, all variables and given/known data Suppose that u, v, w and x are vectors in a vector space V . If x !∈ span(v,w) and x ∈ span(u, v,w), does it follow that u ∈ span(x, v,w)? Justify your answer. 2. Relevant equations 3. The attempt at a solution Not really sure how to even start this problem. Any hints would be good thanks!