Solve x+2y+3z=14x+2y+3z=14x+2y+3z=14, 2x−y+z=32x-y+z=32x−y+z=3 and 3x+y−2z=−13x+y-2z=-13x+y−2z=−1.
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.