- Why we do the same thing to both sides: Simple equations
- Representing a relationship with a simple equation
- One-step equation intuition
- One step equation intuition introduction
- One step equation intuition
- Adding and subtracting from both sides of an equation
- Dividing from both sides of an equation
- Solving two-step equations
- Why we do the same thing to both sides: Multi-step equations
- Why we do the same thing to both sides basic systems
- Why all the letters in algebra?