Question

Rereading and
a text can help readers understand difficult passages.

Answer 1

Corrected sentence:
- "Rereading a text can help readers understand difficult passages."

Why:
- The original had an extra conjunction ("and") that made the phrase ungrammatical. Removing "and" fixes the subject ("Rereading a text") and verb ("can help").

Alternatives (slightly different emphasis):
- "Rereading a passage can help readers understand difficult parts."
- "Rereading the text can help readers better understand difficult passages."
- "Rereading and annotating a text can help readers understand difficult passages." (if you meant to include a second strategy)