Education Technology

Solution 23530: Examples and Differences Between Expressions, Equations and Inequalities.

How to tell the difference between an expression, equation, and inequality?

In mathematics, an expression is a general term for any well formed combination of mathematical symbols. It may consist of just one or more numbers, variables, operators, functions, and their arguments that evaluate to a single answer.

For example:

A + 2A

An equation is a mathematical statement, in symbols, that has two expressions that are exactly the same (or equivalent).

For example:

A + 2A = 3A

An inequality is a statement about the relative size or order of two expressions.

For example:

A < A + 1