Ensure you are using the 3rd Edition solutions, as Lang rearranged several sections between the 2nd and 3rd iterations.
: Solve the equation $$2x + 5 = 11$$ for $$x$$. lang undergraduate algebra solutions upd
Read the same topic in Dummit & Foote or Artin first, then return to Lang’s problem. Often, the solution structure becomes obvious once you’ve seen a different exposition. (Yes, this takes 10 extra minutes. No, it’s not cheating.) Ensure you are using the 3rd Edition solutions,
: The Columbia Math Department provides a detailed commentary that breaks down "obvious" steps in Lang's proofs, which can be as helpful as a direct solution. Strategy for Using Lang then return to Lang’s problem. Often
Lang places heavy emphasis on polynomials as preparation for field theory.