Solve a Linear System of Two Equations and Two Unknowns using Substitution Method

How to solve a linear system using the substitution method. EASY. Solve for one variable in one of the equations, then substitute into the other equation. After that, you need to back substitute to find the other coordinate.

Chapter 4 - Solving Linear Systems

4.1 Solving Linear Systems by Graphing
4.2 Solving Linear Systems by Substitution
4.3 Solving Linear Systems by Elimination
4.4 Applications of Linear Systems
4.5 Solving Systems of Linear Inequalities (Two Variables)
4.6 Review Exercises and Sample Exam