Hey so in a few days my teacher is setting us a test. So for my own benefit and revision purposes I've been doing several questions. I had a whole load of simultaneous equations question that I've been doing today. I've managed to to every single one so far until I got to the following question, I'm really confused on it and got my self into a muddle and I know my answer is wrong because it doesn't work. I've been trying for ages on this question and I would really appreciate if someone could solve this however talk me through it at the same time so I can learn from so I can complete the rest of the questions. I would be really appreciative of any help and thanks in advance to anyone who does. (Reps given)
Question
x + 3y = 16
x^2 - xy + 2y^2 = 46