Variables can be defined as a sign or symbol of which, we are yet to find a valuation. It is generally denoted as X or Y.
An example can be; X+3= 9, where X can be the variable.
When a variable is applied, it is not just one value. It is represented in many numerical forms. Variables can be very productive in graphical illustrations.
In simple terms, variables are changeable. This is the reason why they are called variables. There are three main types of variables, namely; dependent, controlled and independent.
Algebra is a part of mathematics explaining different Greek symbols and regulations for deducing various problems into their solutions. The symbols given constitute specific valuations known as variables.
This branch of mathematics was introduced so that students can learn the art of deducing problems into their solutions.