Solve algebraically the simultaneous equations
2x2−xy=12 2x^2 - xy = 12 2x2−xy=12 x−2y=1 x - 2y = 1 x−2y=1117 exam-style questions on AQA GCSE Maths Quadratic Simultaneous Equations. Each one has a worked solution and a mark scheme showing where the marks go.