Choose the best definition for the following term: variable ?
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
A letter that holds the place for some unknown value in mathematics
I don't see your choice.
The best definition for the term "variable" is: A letter that holds the place for some unknown value in mathematics.
To arrive at this definition, you can identify that a variable is represented by a letter or symbol in mathematical equations, functions, or expressions. It is used to represent an unknown or changing quantity. By assigning a specific value to the variable, you can solve equations or evaluate expressions in order to find the corresponding value. Variables allow for flexibility in mathematical calculations by accommodating different values. So, a variable acts as a placeholder for an unknown or changing value in mathematics.