Algebra 1 · Inequalities
Absolute Value Equation
Algebra 1 · Inequalities
Definition
An absolute value equation is an equation containing an absolute value that splits into two cases, positive and negative.
Examples
- |x| = 5 means x = 5 or x = −5.
- |x − 2| = 3 means x = 5 or x = −1.
Key rule
Split into two equations: the inside equals the positive and the negative value.
Memory hook
Absolute value opens two doors − plus and minus.