Solving a word problem using a system of equations

The video tutorial guides students through solving a word problem involving two numbers with a given sum and difference. It begins with defining the problem and assigning variables to unknowns. The instructor explains how to set up equations and solve them using substitution and elimination methods. The tutorial emphasizes the importance of defining variables and provides a step-by-step demonstration of both solving methods.

What new insight or understanding did you gain from this video?