Question

an equation that is true for every value of the variable is a/an ______.
○ expression
○ identity
○ property
○ none of the choices.

Explanation:

An identity in mathematics is defined as an equation that holds true for every value of the variable(s) involved. An expression is just a combination of numbers, variables, and operations without an equality sign. A property is a general rule about how numbers or mathematical objects behave, not an equation true for all variable values. So the correct term for an equation true for every variable value is an identity.

Answer:

identity