Learn how to solve a system of equations by substitution

The video tutorial covers solving systems of equations using the substitution method. It begins with an introduction to solving systems by graphing and substitution, followed by a detailed explanation of the substitution method. The tutorial guides students on choosing variables for substitution, especially when coefficients are one or negative one. It then provides a step-by-step process for solving equations using substitution, culminating in finding the solution as coordinate points where the lines intersect.

What method is being discussed for solving a system of equations?

What is the first step in the substitution method as described in the text?

Why is it easier to solve for a variable when its coefficient is 1?

What expression is derived for X in the example provided?

How do you substitute the value of Y back into the equation for X?

What are the final values of X and Y as determined in the example?

What does the intersection point of the two lines represent in the context of the system of equations?