Solve the simultaneous equations
2x+5y=4 2x + 5y = 4 2x+5y=4 7x−5y=−1 7x - 5y = -1 7x−5y=−1Hence, find the value of 2x+y2x+y2x+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.