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MathMentor

Learn with Mentor · 7 min

Solve One-Step Linear Inequalities

Isolate x in a one-step inequality the same way as an equation, but flip the sign when multiplying or dividing by a negative number.

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Almost the same as an equation

Solving a one-step inequality uses the same inverse-operation moves as solving an equation. There's one extra rule: if you multiply or divide both sides by a negative number, the inequality sign must flip direction.