I don't think it is a good idea to take Linear Algebra and Differential Equations at the same time. Too much of introductory differential equations is concerned with linear equations and is based on Linear Algebra. You need ideas and techiques from Linear Algebra in Differential Equations much earlier in the term than you get them in Linear Algebra. Take Linear Algebra one semester, Differential Equations the next.
(I once made the mistake of telling a student "Yes, she could take Linear Algebra and Differential Equations concurrently". She complained bitterly the next semester. It wouldn't have done me any good to point out that she had asked if she could do it, not if I thought it was a good idea. I won't make that mistake again! Answer the question that should have been asked, not just the one that was asked.)