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What's algebra?

Algebra is a branch of mathematics that deals with symbols and the rules for manipulating those symbols. It is used to represent problems or situations in a mathematical form and to solve them. ### Key Concepts in Algebra: 1. **Variables**: Symbols (usually letters) that represent numbers, which can change or vary. 2. **Equations**: Mathematical statements that assert the equality of two expressions, often involving variables. 3. **Expressions**: Combinations of variables, numbers, and operations (like addition, subtraction, multiplication, and division). 4. **Polynomials**: Expressions consisting of variables and coefficients, involving only the operations of addition, subtraction, multiplication, and non-negative integer exponents. Algebra is fundamental in various fields, including science, engineering, economics, and medicine, as it provides tools for problem-solving and mathematical modeling. If you have any specific questions or topics within algebra you'd like to explore, feel free to ask!