Place the cursor at the end of the content before the empty page
Press Backspace or Delete until the blank page disappears
Turn on Show/Hide formatting marks with Ctrl+Shift+8
Delete any extra paragraph marks on the blank page
Delete any manual page breaks on the blank page
Delete any section breaks if they are causing the blank page
Reduce the font size of the final paragraph mark to 1 pt if needed
Check for tables at the end of the document and remove extra paragraph spacing after them
Use the Navigation Pane to locate and select the empty page
Save the document and confirm the page is gone