## At A Glance

### Systems with three variables

Two equations with two unknowns not challenging enough for you? How about three equations with three unknowns? Visualizing lines in 2-D too easy? Well, now you're going to visualize intersecting planes in 3-D, baby. (Okay, we admit that it is weird for a website to call you "baby.") Tired of linear systems? Well, we might just bring a little nonlinearity into your life, honey. (You might want to brush up on your solving quadratics before tackling the non-linear systems.) As always, try ...

Topics: Algebra, General Mathematics
Cost: Free

## Overview

### Description

Two equations with two unknowns not challenging enough for you? How about three equations with three unknowns? Visualizing lines in 2-D too easy? Well, now you're going to visualize intersecting planes in 3-D, baby. (Okay, we admit that it is weird for a website to call you "baby.") Tired of linear systems? Well, we might just bring a little nonlinearity into your life, honey. (You might want to brush up on your solving quadratics before tackling the non-linear systems.) As always, try to pause the videos and do them before Sal does!

### Details

• Days of the Week: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
• Level of Difficulty: Beginner
• Size: One-on-One
• Instructor: Sal Khan
• Cost: Free
• Institution: Khan Academy
• Topics: Algebra, General Mathematics

## Provider Overview

About Khan Academy: Khan Academy is an organization on a mission. Khan Academy is a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere.

### Latest Tweet

Khan Academy Offers Courses In: Mathematics

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