The formula for the nnn-th term L L\,L of a sequence is L=a+ndL = a + ndL=a+nd.
Make n n\,n the subject of the formula L=a+ndL = a + ndL=a+nd
52 exam-style questions on AQA GCSE Maths Rearranging Harder Formulae. Each one has a worked solution and a mark scheme showing where the marks go.