Question
A projector costs $391 more than a stereo system. 6 such stereo systems cost as much as 3 printers. If each printer costs $666. Find the cost of 7 projectors.
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A projector costs $391 more than a stereo system. 6 such stereo systems cost as much as 3 printers. If each printer costs $666. Find the cost of 7 projectors.