Algebra

Inequality

A statement using <, >, ≤ or ≥ instead of =, expressing a range of valid values.

Definition

Solve inequalities like equations, except: multiplying or dividing both sides by a negative number flips the direction of the inequality.

Example

2x + 3 < 11 → 2x < 8 → x < 4.

Used in these topics

Related terms

Equation

A mathematical statement with an equals sign — true for some specific value(s) of the unknown.

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