✅ Buy the used Spanish edition (e.g., 14th ed. on IberLibro or Amazon) + rent the official e-solution manual via Pearson+.
✅ Use the spreadsheet functions (PV, FV, PMT, RATE, NPV, IRR) – many professors accept Excel printouts as solutions, which mirror the book's problems. ingenieria economica degarmo pdf solucionario
If you are an instructor, request an official "Instructor's Solution Manual" directly from Pearson by verifying your faculty status. ✅ Buy the used Spanish edition (e