Intro to Variables & Expressions (free)

Let’s face it, the craziest thing about algebra is it’s the first time you see letters in math. X is the most famous of them, but we can use any other letter of the alphabet (and I often will to get you used to it). In this video, we’ll quickly talk about what variables and expressions are, then we’ll get some practice using them, and plugging numbers in for x to "evaluate" expressions.