Which method is not used to find the solution of a system of linear equations. graphing matrices guess and check substitution

Guess and check might sound like a fun game, but it’s not a reliable method for solving systems of linear equations. While it’s great for finding answers to simple math problems or riddles, this approach can become tedious and inefficient when dealing with multiple equations. The graphing method can visualize the solutions, showcasing where lines intersect, while substitution and matrices provide systematic ways to solve for variables. If you want to impress your friends in math class, stick to the latter methods for a cleaner and quicker solution!