Each one-step equation has a match of the correct value for the variable. The document has the correct value to the right of the equation. I printed it out on colored card stock ahead of time so students would not recognize the matches if they were to cut them out on their own. I also required students to show their work on a white board so they were able to prove they matched. I have students work in partners for this activity. This is great for a station activity as well!