This is a lesson on Simultaneous Equations for GCSE Foundation and Higher. It is an ActivInspire file with 114 slides in total. It is designed for one-to-one tutoring and tuition. It incorporates every past exam question going back 10 years, so the topic is fully covered, from two linear equations with a common coefficient, up to one linear and one quadratic equation requiring rearranging (Higher only). You can view a video of the file being used in the link, and here.