Constant?
not positive
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A constant.
Identity property of addition states that the sum of zero and any number or variable is the number or variable itself. Identity property of multiplication states that the product of 1 and any number or variable is the number or variable itself.
Such a number is called a "constant". If the number appears in front of a variable, it is sometimes called a "coefficient".
The number is called the coefficient of the variable
An unknown number is a variable and its symbol is usually in the form of a letter such as x or y