**Real numbers**are nearly every number you can think of, positive or negative, rational or irrational, fractional or whole, including zero. But real numbers are NOT imaginary numbers or numbers that cannot be defined, like “infinity.”- A
**linear equation**is, simply put, an equation for a straight line on a graph. They are important because, as one Reddit author stated, “most things look linear on a small enough scale” which means it’s a good starting point for more complex mathematical and scientific questions as well. **Factoring**is finding what to multiply together to get an expression. It’s also the opposite of expanding and can make complex mathematical functions easier as you progress.**Solving linear equations.***substitution*or*elimination*. As a student, you may be more attuned to solve liner equations one way over another.

# Introductory Algebra for College Students Explained

Introductory Algebra is a fundamental math course, meant to prepare students to move into more complex and advanced material. Sometimes called developmental algebra, this course aims to lay a solid foundation for college-level math courses by covering key topics like the following: