Write a text based on "bt purchase of mci seen easily winning u.s. regulatory backing"

Text:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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a british telecom plc purchase of long-distance operator mci communications corp. would likely win swift regulatory approval in the u.s. , antitrust and communication lawyers said today .