Solve x+y+z=6x+y+z=6x+y+z=6, 2x−y+z=32x-y+z=32x−y+z=3 and x+2y−z=2x+2y-z=2x+2y−z=2.
8 exam-style questions on CCEA A Level Maths 1.1.8 Algebra and functions. Each one has a worked solution and a mark scheme showing where the marks go.