Clothes hangers are widely used to show the steps required to solve an equation. It makes the steps more visible. They look like a hanger wherein the top bar is horizontal showing it is balanced. This model works for one step equation and also for complex equations. While we are solving model equations with clothes hanger, we must keep in mind that we create equal change to keep it balanced.
Grade 6
Expressions, Equations, And Inequalities
6.EE.B.7