When companies are consolidated, balances and transactions between them are removed so the group reports only what it owes, owns and earns with outside parties. Those removals are elimination entries.
Elimination entries exist only at the group level. They are never written back to any company's QuickBooks Online file, because they have no meaning in a single company's books: each company's receivable or sale to its sister company is real in its own ledger. The same applies to the translation adjustment and other consolidation-only entries.
Every intercompany pair you have confirmed is eliminated wherever a consolidated figure is shown: the consolidated income statement in Analysis, the Briefing, forecasts and report packages, and the consolidated balance sheet in report packages. A balance-sheet pair, such as a receivable and the matching payable, removes both balances. A sales and purchases pair, such as a management fee, removes both sides of the month. Each side is removed at the rate the group translated that company at. See Intercompany reconciliation for confirming pairs.
Eliminations are worked out from the confirmed pairs each time a consolidated statement is built, so a change to a company's books after a consolidation run is reflected, never left behind in a stale entry. The statement notes how many pairs were eliminated.
Partly owned companies are covered in Non-controlling interests.