hey guys if i am not mistaken I believe Greg mention in a video that If we have 3 variables and there is only 2 equations, there is no way we can solve it, does this apply all the time ? i came with this tyoe of question on PPP2 and did not know how to solve it.
You can post the screenshot of the question from the test in-here and discuss it, given that you add proper spoiler warning in the heading!