Solving an Equation for x and y

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Taught by mrbrianmclogan
• Currently 4.0/5 Stars.
7258 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson, you'll learn how to solve equations for x and y using two steps. To solve for x or y, you need to isolate the variable by undoing the operations that are being performed on it. When solving for x, you'll need to undo addition or subtraction and then undo multiplication or division. When solving for y, you'll need to undo multiplication or division first, and then undo addition or subtraction. With practice, you'll be able to solve equations with ease.

Lesson Description:

Solving an equation for y and x using two steps

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 solve for x in the equation 3x+4y=15?
• How do I solve for y in the equation 3x+4y=15?
• Staff Review

• Currently 4.0/5 Stars.
This lesson shows how to solve for one variable in a literal equation in terms of the other variable(s) in the equation. In the lesson, the teacher solves for both x and y in the equation 3x+4y=15.