Solving Inequalities
Maths: Edexcel A Level Pure Maths, topic 2.3.1
Inequalities
Inequalities are formulae with at least one of <, >, ≤, ≥ in them. Solve the inequality -5x - 2 > 3x:
Write the inequality
Subtract 3x from both sides
Add 2 to both sides
Divide both sides by 8
Multiply both sides by -1
- Note that multiplying or dividing by a negative number switches the direction of the inequality sign.