Roman numerals use letters in place of numbers.
An unknown variable in algebra uses a letter instead of a number.
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When you do not know the value of a particular number, the most usual symbol used in place of that number is the letter x.
A letter that is used in place of a number is called a variable.
if there is a letter (example n, z ) instead of a number in algebra it stands in place of that number. this means if you are doing multiplication you are going to divide the numbers to get the answer for your letter . if you are doing division you do it the other way around! easy
Yes, it can be.
A variable