# What is Algebra in Maths?

What is algebra in maths? Algebra is a branch of mathematics in which letters or symbols are used to represent unknown numbers and/or used in addition to known numbers that are used in arithmetic.

These letters or symbols usually represent unknown numbers and are called variables.

For example, if you write 2 + 4 = 6, you are dealing with arithmetic because no letters or symbols are used in the equation.

However, if you write x + 4 = 6, you are now dealing with algebra since the letter x is used in the equation.

Notice that the letter x represents an unknown number in x + 4 = 6.

## Another example showing what algebra is in maths

The following two equations deal with arithmetic.

1. 8 + 5 = 13

2.  8 - 5 = 2

However, if you replace 8 and 5 with unknown numbers, you are dealing with algebra.

1.  x + y = 13

2.  x - y = 2

Algebra is therefore an extension of arithmetic dealing with unknown numbers that are called variables.

## Recent math words 1. ### What is a Vector? Definition and Examples

Feb 04, 22 05:28 AM

What is a vector? Definition, explanations and easy to understand read life examples.

2. ### What are Vertical Angles? Definition and Examples

Feb 03, 22 05:45 AM

What are vertical angles? Definition, explanation and easy to understand examples.