Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original.

To work through a question about solving inequalities.

Objectives

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original.

1. Solve the following inequality and represent your answer on a number line.

32125 xx

You can usually treat the inequality in the same way as you would an equation.

123212125 xx +12 to both sides.

1525 xx153 x

Subtract 2x from both sides.

5x Divide both sides by 3.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original.

1. Solve the following inequality and represent your answer on a number line.

5x

-2 -1 0 1 2 4 53

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original.

1. Solve the following inequality and represent your answer on a number line.

5x

-2 -1 0 1 2 4 53

Not filled in because not

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original.

Solve the inequality as if you were solving an equation.

Summary

Draw a number line.

Make sure you remember to decided whether or not the circle needs to be filled in.