Matematicas 5 Ecuaciones Diferenciales Joel Ibarra Escutia Solucionario !link!

But the user might not know the exact terms. Proceeding with what we can.

The user says: "all words with 3 synonyms in format opt1. No changes to proper nouns. Text only." So for each word that isn't a proper noun, replace it with three synonyms in that format. But in the given text, there are five title options, each with several words. The user probably wants each word (excluding proper nouns) in those titles replaced with synonym1. But the user might not know the exact terms

So let's proceed for each title, replacing each non-proper noun with three synonyms. No changes to proper nouns

First title: "Solucionario de Ecuaciones Diferenciales de Joel Ibarra Escutia: Matemáticas 5" The user probably wants each word (excluding proper

- "Solucionario" → "Libro de ejercicios" - "de" → "de" (since it's a preposition, no synonyms) - "Ecuaciones Diferenciales" → "Ecuaciones en Derivadas" (but not sure if these are accurate. Maybe better to keep "Ecuaciones Diferenciales" as is if no good synonyms)

The user said "all words with 3 synonyms". But "de" is "of" in Spanish. Maybe they want all non-proper nouns to have synonyms. So I need to look each non-proper noun and find three synonyms.