An executive of Trident Communications recently traveled to London, Paris, and Rome. He paid $180, $230 and $160 per night for lodging in London, Paris and Rome, respectively, and his hotel bills totaled $2660. He spent $110, $120 and $90 per day for his meals in London, Paris, and Rome, respectively, and his expenses for meals totaled $1520. If he spent as many days in London as he did in Paris and Rome combined, how many days did he stay in each city?

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