X Definition (Illustrated Mathematics Dictionary) - Math Is Fun
Maybe your like
ABCDEFGHIJKLMNOPQRSTUVWXYZ Definition of X more ... 
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 value if we try!
A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.
See: Variable, Algebra, Equation Introduction to Algebra Copyright © 2025 Rod PierceTag » What Is X In Math
-
What Does '|x|' Mean In Mathematics? - Quora
-
X Variable Concept | What Does X Mean In Math?
-
Mathematical Symbols - TechTarget
-
Math Symbols List (+,-,x,/,=,...)
-
What Does The Math Term X-Intercept Mean? : Math Definitions & More
-
Why We Use "X" As The Unknown In Math - Gizmodo
-
What Does The Notation [x] Mean In This Question?
-
Why Is 'X' Used To Represent The Unknown? - NBC News
-
What Does "x|x" Mean In Math?
-
Variable (mathematics) - Wikipedia
-
Glossary Of Mathematical Symbols - Wikipedia
-
2.6: The Function [x]. The Symbols "O", "o" And "∼" - Mathematics ...
-
Function Notation & Evaluating At Numbers - Purplemath