Chapter 3 – Equations and Inequalities

Section 3.1 – Linear simultaneous equations

Example 1 – Solving linear simultaneous equations by elimination

Example 2 – Solving linear simultaneous equations by substitution

Example 3 – Solving linear simultaneous equations by substitution

Example 4 – Linear simultaneous equations on graphs

Example 5 – Non-linear simultaneous equations on graphs

Example 6 – Non-linear simultaneous equations on graphs

Example 7 – Linear inequalities

Example 8 – Linear inequalities

Example 9 – Quadratic inequalities

Example 10 – Quadratic inequalities

Example 11 – Non-linear inequalities

Example 12 – Inequalities and simultaneous equations

Example 13 – Linear equalities and regions of graphs

Example 14 – Non-linear equalities and regions of graphs

End of Chapter Exam Questions