Solving an Equation for y and x

Sick of ads?‚Äč Sign up for MathVids Premium
Taught by mrbrianmclogan
  • Currently 4.0/5 Stars.
7291 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson, we learn how to solve literal equations for both x and y. The key is to isolate the variable you're trying to solve for and undo any operations that are preventing it from being alone. In solving for x, we add y to both sides and then divide by 7. In solving for y, we rewrite the equation to see that 7x is being added to y, and then we subtract 7x and divide by -1. By following these steps and understanding the operations involved, we can successfully solve for both x and y in any literal equation.

Lesson Description:

Solving an equation for y and x

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.

Questions answered by this video:
  • How do I solve for one variable in a literal equation in terms of the other variables in the equation?
  • How do I get x by itself in the equation 7x-y=14?
  • How do I solve for x in the equation 7x-y=14?
  • How do I get y by itself in the equation 7x-y=14?
  • How do I solve for y in the equation 7x-y=14?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson shows how you can solve for one variable in a literal equation in terms of the other variable(s) in the equation. In the example in the lesson, the teacher solves for both x and y in the equation 7x-y=14.