Solve the simultaneous equations
3x=9+yx+5y=6 \begin{aligned} 3x &= 9 + y \\ x + 5y &= 6 \end{aligned} 3xx+5y=9+y=6Hence find the value of 16x−16y16x-16y16x−16y.
217 exam-style questions on AQA GCSE Maths Simultaneous Equations. Each one has a worked solution and a mark scheme showing where the marks go.