Solving a System with Substitution
This lesson teaches how to solve a system of equations using substitution. Firstly, pick a variable to solve for, then plug this variable into the other equation. Solving the resulting equation will give the value of the second variable. Finally, plug the value of the second variable into either of the original equations to solve for the first variable. By following these quick and easy steps, a system of equations can be solved using substitution.
How to solve a system of equation using substitution
I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exactly how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. These videos are intended to help you learn how to solve math problems, review how to solve a math problems, study for a test, or finish your homework. I post all of my videos on YouTube, but if you are looking for other ways to interact with me and my videos you can follow me on the following pages through My Blog, Twitter, or Facebook.
- How do you solve a system of two equations in two variables using substitution?
- How can you use substitution to solve a system of equations?
- How do you solve the system 5x + 3y = 12 and x + 2y = 8 using substitution?
- Which variable should use solve for when solving a system of equations by substitutions?
- After solving for one variable, how to do you find the value of the other variable in a system of equations?
-
Staff Review
This lesson goes through one entire example of solving a system of equations using substitution. Each step is explained along the way along with a summary of the steps at the end.
