Lesson 1 of 5Module 2 · 0% of course
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Number Sense & Algebra · Algebra

Variables & Equations

A variable is a name for an unknown number; an equation is a balance. Solving by doing the same thing to both sides, rearranging formulas, and translating word problems into algebra.

30 min · 6 steps · videoJump to quiz ↓
The Book That Started It All Ben Syversen · 41 min
Open in YouTube
Step 1 of 6 · Overview30 min read ·
Key idea
Prereqs: Fractions & percentages; Exponents. Next: Linear functions & graphs. Follows Khan Academy Algebra 1 'Solving equations' and the Art of Problem Solving Prealgebra sequence.
Next: 1. The balance idea

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