# Algebra and Linear Equations

**Watch the video then write the notes and do the worksheet below**

### Date: May 14, 2020

### Subject: Mathematics

### Topic: Algebra

### What is algebra?

### Algebra is a type of mathematics that uses letters or symbols to represent numbers.

### Rema has 5 coins, her friend has 7 coins. Together they have 12 coins

### 5 + 7 = 12 Arithmetic

### Johnnie has $5 and wants to buy a book for $12. How much more money does he need? We write this as follows:

### 5 + x = 12 Algebra

### x represents the amount of money Johnnie needs.

### The goal in algebra is always to find the unknown represented by the letter.

### What is an equation?