Solving inequalities (AQA GCSE Maths): Flashcards

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Solving inequalities
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What are inequalities?

Mathematical statements using <<, >>, , to show relationships between expressions

Basic method for solving inequalities

Same steps as equations

Rule when multiply/divide by negative

Reverse the inequality sign

When reversing: << becomes

>>

When reversing: becomes

Format of inequality solutions

Variable alone on one side, number on other

Solutions: inequalities vs equations

Inequalities: many; equations: usually one

What is a double inequality?

Two inequalities combined, e.g., 3n<2-3 ≤ n < 2

How to solve double inequalities

Solve them separately

Tip: avoiding negatives in inequalities

Add terms to both sides instead of subtracting

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