Solving Systems of Equations Using Substitution

This video tutorial teaches how to find exact solutions to systems of equations using substitution. It begins with an introduction to systems of equations and the substitution method. The video reviews how to check if a point satisfies a system and how to solve single equations using inverse operations. It then demonstrates solving a system of equations using substitution with examples, emphasizing the importance of verifying solutions. The tutorial concludes with an advanced example, reinforcing the substitution method and ensuring solutions satisfy the original equations.

What is the first step to determine if a point satisfies a system of equations?

How do you solve the equation 3 - 5x = 18?

Explain the process of substituting one equation into another when solving a system of equations.

What is the solution to the system of equations x + 3y = 1 and -3x + 3y = -15?

How can you verify that your solution satisfies both equations in a system?