Solve algebraically the simultaneous equations
x2+2y2=18 x^2 + 2y^2 = 18 x2+2y2=18 x−y=3 x - y = 3 x−y=3223 exam-style questions on OCR GCSE Maths Quadratic Simultaneous Equations. Each one has a worked solution and a mark scheme showing where the marks go.