Understanding Equations and Multiple Solutions: Using Bar Models

The video tutorial explains how to determine if an equation has one solution using a bar model. It begins by introducing the concept of equations and the equal sign, emphasizing that both sides of an equation must have the same value. A real-world example involving Jenna and her pottery figures is used to illustrate the concept. The tutorial then demonstrates solving equations through substitution and verifies the solution using a bar model, concluding that the equation has only one solution.

What method did Jenna use to determine the number of figures she can make?

Why is it important to check the final answer when solving an equation?