This is a great activity to help practice solving multi-step equations. These problems involve combining like terms, distribution, and some even involve decimals/fractions. Students need to cut out the triangles and lay them out on the desk. They will choose one equation to start with and solve on a scratch piece of paper. Then they will find their answer on another triangle. They must line up the answer to the equation. Then, they will complete another equation. Eventually, the shape will come together as a triangle.