Systems of Equations: Substitution Practice

This example demonstrates how to solve systems of linear equations using the substitution method, visually showing the solution set. Core math concepts include linear equations, linear functions, and the solution of systems of equations. Construction highlights the use of GeoGebra commands and objects like Textfield, NSolve, First, etc., with input boxes and text fields for interactive equation solving and result display. Suitable for high school students learning to solve systems of linear equations, ideal for classroom demonstrations and homework practice.