Is a variable minus a variable a monomial?

Answer:

Not always. It could be a constant.

For example x is one variable, and y = x-2 is another variable. Then

x - y = x - (x-2) = 2.

First answer by Mehtamatics. Last edit by Mehtamatics. Contributor trust: 611 [recommend contributor recommended]. Question popularity: 1 [recommend question].