Let's think out another way.

He figured out a principle.

He came up with the solution to the problem.

He has worked out a quicker way to get the job finished.

We thought out a new way.

After all the trouble we went to in coming up with that project, it only took them a second to shoot it down in the meeting.

To my surprise, he easily came up with a plan.

Scientists have come up with many explanations for why the sky is blue.

The committee stayed up late last night trying to work out measures that would please everyone.

At last, he found out how to make it.

Please find a solution to the problem.