Basic algebra is a branch of mathematics that deals with symbols and the rules for manipulating those symbols. It involves using letters, often called variables, to represent numbers in equations and expressions. For example, in the equation x + 2 = 5, x represents an unknown number that can be solved. In algebra, you learn to perform operations like addition, subtraction, multiplication, and division with these variables. Understanding basic algebra helps in solving problems and is foundational for more advanced topics, such as geometry and calculus. It is widely used in everyday life, from budgeting to calculating distances.