CREATE TABLE table_51922 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Date" TEXT)

Which home team an Away team score of 7.9 (51)?
SELECT "Home team" FROM table_51922 WHERE "Away team score" = '7.9 (51)'
SELECT "Home team" FROM "table_51922" WHERE "Away team score" = '7.9 (51)'