Variable
A variable is usually used for that - for example, a single letter that represents the unknown quantity.
The word "variable" represents an unknown number.
Usually x or n, but can be any letter.
x
A variable
It represents a number that is unknown in a problem. For example,16 + x = 44.In this case "x" would represent the number 28 in the problem.
x= the unknown
A variable is usually used for that - for example, a single letter that represents the unknown quantity.
The word "variable" represents an unknown number.
Usually x or n, but can be any letter.
A variable
x
A variable.
In mathematical expressions, a variable (a letter used to represent a certain value) represents an unknown or changeable value. It is often the variable x.
a variable
It represents an unknown variable.
a noun