When we solve algebraic equations, our aim is to end up with one letter on one side of the equals sign and one number on the other. This is the **solution**.

We do this by simplifying like terms if we can, and then using **inverse operations** to undo things that get in the way, but remember that we must **do the same thing to both sides.**

**Example**

7b - 2b = 20

**Answer**

Simplify the left-hand side by combining like terms:

5b = 20

Divide both sides by 5:

5b ÷ 5 = 20 ÷ 5

Simplify:

**b = 4**

Are you ready to have a go at doing this yourself?