I think that he has come up with a solution.

Still, no one has come up with a clear solution.

No one else but you would have ever been able to come up with a solution.

However I am certain we need to sort the schools out and come up with a better solution.

He had to come up with an answer and a solution.

Work together to try to come up with a solution.

She had not come up with a solution to her problems.

He did all the talking, and we came up with a solution before I could really say much.

The group will also come up with a solution for the problem.

We needed to come up with a new solution to provide help.