This Instructional Activity is a part of the Lesson 3, Unit 6, Grade 6. Students are presented with four hanger diagrams and are asked to match an equation to each hanger. They analyze relationships and find correspondences between the two representations. Then students use the diagrams and equations to find the unknown value in each diagram. This value is a solution of the equation. Notice that the hangers (and equations) for x and z are identical except that the variable appears on alternate sides of the equal sign.