Sometimes it is, sometimes it is not. There is no rule or even a convention, about it.
What is a Variable in Math?A variable in math is part of algebra and it is a symbol or letter that represents a number.
A variable is an unknown number represented by a letter
In math a letter is a variable and it can be any number.
That is called a variable.
A variable.
A variable is a (letter) symbol that represents one or more numbers
the letter is called a variable because it can be changed
the letter L can stand for a variable.
variable- is a letter that represents an unknown number ex- x-1=10
X could be a sign for multiplication, or it could also be a variable. A variable is a letter representing a number.
It is a letter which may be used to represent a variable. You can decide what it stands for.
a variable expression in math is a symbol that is in a sentence