Understanding Variables
Learn the basics of Algebra by understanding variables. A variable is a symbol, usually a letter, that's used to represent a number in mathematical expressions and equations.
Key Points:
- Variables can change and are not fixed to one number.
- They allow writing equations that express general relationships between quantities.
- In equations, variables are placeholders we solve to find their value.
Example
If x + 3 = 7, what is the value of x? To solve, subtract 3 from both sides to find x = 4.
Interactive Check
Tip: Don't hesitate to experiment and make mistakes; that's how you learn!
Want to practice more? Check our online exercises!
