Make x x\,x the subject of the equation
3x+y=7 3x+y=7 3x+y=7Hence solve algebraically the simultaneous equations
2x2−y2=−14 2x^2-y^2=-14 2x2−y2=−14 3x+y=7 3x+y=7 3x+y=7223 exam-style questions on WJEC GCSE Maths Quadratic Simultaneous Equations. Each one has a worked solution and a mark scheme showing where the marks go.