Solve x+y−z=0x+y-z=0x+y−z=0, 2x−y+3z=12x-y+3z=12x−y+3z=1 and 3x+2y+z=−23x+2y+z=-23x+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.