x= the unknown
A variable is usually used for that - for example, a single letter that represents the unknown quantity.
In mathematics, a symbol that represents an unknown quantity is typically denoted by a variable, such as "x" or "y". These variables are used to represent values that are not yet known or are subject to change. They are commonly used in algebraic equations to solve for the unknown quantity based on given information or conditions.
Usually x or n, but can be any letter.
The word that describes a letter or symbol representing an unknown quantity is "variable." In mathematics and algebra, variables are often used to stand in for numbers that can change or are not yet known. Common examples of variables include letters like x, y, and z.
A variable.
Because, x is a variable, so it can mean any number ever known. It is called the "Unknown Quantity" simply because it represents the number that is not known in the equation. For exampe x+1=y So x and y are variables, each represents a number, if y=2 then it wold be x+1=2 and then you can figure out the "Unknown Quantity" which is 1.
A variable.
veribal
Usually x or n, but can be any letter.
Unknonwn quantity is any variable a,b,c or x,y
The quantity designated by the letter "c" is the speed of light
A pronumeral (Why is this in the gaming hardware category?)