I used this activity as a group station when reviewing for a test. I make a couple of these packets, choose a few students that can lead a group, and then organize my student groups accordingly. In theory, the right leader can keep the group on task and also work as a tutor of sorts for the group.
This would be a great activity if you could make a couple of other groups with leader students so everyone can feel like they get a chance to lead.
Included is a front sheet with a place for the leader student's name and directions for the group. Each card has increasingly more difficult equations, starting with one-step and going through multi-step with distributing, combining like terms, and variables on both sides. At the end is a card for each student to sign and indicate how they feel about equations. Then, just for fun, I put a really long, hard bonus.