Question

Choose the best definition for the following term: variable

A letter that holds the place for some unknown value in mathematics
A process where you must look for terms that have identical variable parts and then combine their coefficients
A process where if two things are equal, one can be put in the place of the other and nothing will change
Terms that have identical variable parts

Answer 1

The answer is A

Hope this helps C:

Answer 2

The answer is "A letter that holds the place for some unknown value in mathematics"