Variables are a foundational concept in algebra. It is called a variable because its value can vary from one equation to another (perhaps even within a single equation). The most common variable you will come across is ‘x‘. It is commonly used to represent unknowns in equations. For example, 6x+1=15. The variable x can be solved by performing algebraic operations on both sides of the equation. Some equations have multiple variables.


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Last updated: 01/25/2018
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