Verify that x=52\displaystyle x = \frac{5}{2}x=25 and y=−3y = -3y=−3 are the solutions of the simultaneous equations
2x+5y=−10 2x + 5y = -10 2x+5y=−10 2x−y=8 2x - y = 8 2x−y=8217 exam-style questions on OCR GCSE Maths Simultaneous Equations. Each one has a worked solution and a mark scheme showing where the marks go.