Solve the simultaneous equations
3x−y=−4 3x - y = -4 3x−y=−4 2x−3y=9 2x - 3y = 9 2x−3y=9Hence, find the value of x+yx+yx+y.
217 exam-style questions on OCR GCSE Maths Simultaneous Equations. Each one has a worked solution and a mark scheme showing where the marks go.