Solve the simultaneous equations in terms of kkk, where k k\,k is a positive integer
3x=9+yx+ky=5 \begin{aligned} 3x &= 9 + y \\ x + ky &= 5 \end{aligned} 3xx+ky=9+y=5217 exam-style questions on OCR GCSE Maths Simultaneous Equations. Each one has a worked solution and a mark scheme showing where the marks go.