Using the substitution method to solve the system of equations

The video tutorial explains the substitution method for solving equations, focusing on variables with coefficients of 1 or -1. The teacher demonstrates solving for X when it has a coefficient of -1, emphasizing the simplicity of the process without fractions. The tutorial covers replacing equations to simplify problems and applying the distributive property to solve for Y. Finally, it shows how to find the value of X and concludes the problem-solving process.

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