List Distinct entries based on property and sum of duplicates

Question

Im wondering I may be asking a simple question, but trying to get a elegant solution. I have a situation where below are the rows

State Label <

Answer 1

Not tested, but this should work.

var newList = list.GroupBy(x=> new {x.State , x.Label })
                  .Select(x=> new YourClass(x.Key.State, x.Key.Label, x.Sum(x=>x.Value) ))
                  .ToList();