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.

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