An answer you cannot reproduce is worth nothing. You copy it down, it is correct, and in the exam the same problem in different clothes defeats you completely.
The difference between an answer key and a tutor is that the tutor shows the working - and, crucially, says why each step is needed. That "why" is the transferable part. It is what lets you recognise the same move in a problem that looks nothing like this one.
This prompt asks for exactly that: every step, the reasoning behind it, the final answer marked clearly, and a verification at the end. The check matters more than people expect - it catches the arithmetic slips that AI, like humans, absolutely still makes.
Run it in the AIMIKA chat in Text mode.
The output has four parts: the steps, the reasoning behind each step, the final answer marked clearly, and a verification. Read them in that order and resist the urge to jump to the answer - the answer is the least useful thing on the page.
The verification is worth a special mention. Asking a model to check its own work is not a formality: long calculations are exactly where mistakes appear, and a check that does not close is a loud signal that something upstream went wrong. If the numbers matter, run the arithmetic yourself as well.