This is a game to review solving multi-step inequalities, including those with variables on both sides of the inequality sign.
I use this by putting the cards around the room and having the students each pick one to start. On their first card they ignore the top answer, working the bottom problem. They then move around the room looking for the card with their answer at the top. They then work the problem below that and continue moving around the room until they end with the card where they started.
This could also be printed out and a set given to each student to work through individually or at review stations.