Three students searching for together is better than one. Assign each person a few exercises, then present proofs to each other. This mimics a graduate-level seminar.
: These are often updated based on feedback from other students, making them quite reliable. Tips for Solving Lang’s Algebra Problems lang undergraduate algebra solutions
George Bergman (UC Berkeley) famously compiled a set of companion notes and corrections for Lang’s algebra texts. While not a step-by-step answer key for every problem, these notes clarify Lang’s more cryptic passages and provide hints for the more notorious exercises. Three students searching for together is better than one