By definition, what does it mean to evaluate an expression?

Question

Accepted Answer

A. To find its value once a given number replaces the variable

1. Evaluating starts with an expression that still contains a variable.
2. The variable is replaced, or substituted, with a specific given number.
3. Simplifying what remains gives the value of the expression for that number.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 1 "Foundations", section 1.2 Use the Language of Algebra_

Answer

To find every variable that makes the expression equal zero

Answer

To rewrite the expression using only whole numbers

Answer

To simply count how many terms the expression has