Learn how to solve a system of equations by substitution. To solve a system of equations means to obtain a common values of ...

In this video I will explain the only times I want students to use substitution over elimination. The reason for this is that ...

Equations that have more than one unknown can have an infinite number of solutions. For example, \(2x + y = 10\) could be solved by: \(x = 1\) and \(y = 8\) \(x = 2\) and \(y = 6\) \(x = 3\) and \(y = ...

Try these interactive flashcards based on GCSE maths past papers. By working your way through the flashcards created by experts, you can prepare for your maths exams and revise commonly used ...