What is a algerbric expression?

An algebraic expression is a mathematical phrase that includes numbers, variables (letters that represent unknown values), and operations such as addition, subtraction, multiplication, and division. For example, (3x + 5) is an algebraic expression, where (x) is the variable. Unlike equations, algebraic expressions do not contain an equality sign. They can be simplified or manipulated but do not represent a specific value until the variables are assigned numerical values.