The list below has some of the most common symbols in mathematics. However, these symbols can have other meanings in different contexts other than math. [source?]

List of all math symbols and meaning - equality, inequality, parentheses, plus, minus, times, division, power, square root, percent, per mille,...

The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its …

Jul 23, 2025 · In an algebraic expression, "x" typically represents a variable or unknown. A variable is a symbol (usually a letter) that stands for an unknown value or a value that can …

What Does X Mean? A Clear Explanation with Examples The letter X can represent various concepts depending on the context in which it is used. Here, we’ll explore a few of its common …

Aug 4, 2023 · There are a few different explanations that math enthusiasts have put forward—some citing translation, others pointing to a more typographic origin. Each theory has …

Aug 1, 2025 · x is a variable, which is a symbol that stands in the place of a number. It has no specific value, unless you are given one to substitute for it or if you are solving an equation.

Jan 17, 2024 · In algebra, ‘x’ is commonly used as a symbol to represent a variable, which is a value that can change or that is not yet known. I often think of variables as placeholders in …

Jun 9, 2025 · Key Points The variable 'X' represents an unknown value or quantity in algebraic equations and expressions. The use of 'X' and other variables enables mathematicians to …

Learn about the meaning of "x." Understand what a variable represents and what "x" means in math. Learn more about why we generally write "x" as a variable.