Which term is used for a statement that says two expressions are equal?

Which term is used for a statement that says two expressions are equal?

• A. Inequality
• B. Equation
• C. Expression
• D. Identity

Answer: (B)

Two expressions being equal is an equation. An equation uses the equals sign to say that the left side and the right side have the same value. Expressions by themselves are just math phrases that can be evaluated, like 3x + 5 or 7, but they don’t make a claim about equality. An inequality uses <, >, ≤, or ≥ to compare values, not equality. An identity is an equation that is true for all values of the variables, like x + x = 2x. So the word for a statement that two expressions are equal is equation. For example, 3 + 4 = 7 is an equation.

Two expressions being equal is an equation. An equation uses the equals sign to say that the left side and the right side have the same value. Expressions by themselves are just math phrases that can be evaluated, like 3x + 5 or 7, but they don’t make a claim about equality. An inequality uses <, >, ≤, or ≥ to compare values, not equality. An identity is an equation that is true for all values of the variables, like x + x = 2x. So the word for a statement that two expressions are equal is equation. For example, 3 + 4 = 7 is an equation.