Lambda Expression

Question

Can I simplify this statement with a lambda expression?

var project = from a in accounts
              from ap in a.AccountProjects
              where ap.AccountProjectID == accountProjectId
              select ap;

Answer 1

var project = accounts.SelectMany(a => a.AccountProjects)
                      .Where(x => x.AccountProjectID == accountProjectId);

Whether this is actually simpler is a matter of taste.