Applying substitution to solve a system of equations with infinite many solutions

The video tutorial explains how to solve systems of equations using the elimination method. It begins by identifying which variable to isolate and solve, focusing on variables with a coefficient of 1. The tutorial demonstrates solving for Y and substituting its value into another equation. The process leads to a consistent solution with infinite solutions, as the equations represent lines that overlap on a graph.

Explain the process of substituting the value of Y back into the other equation.

What does it mean if you end up with an equation like 6 = 6 when solving the system?