Question
A hi-fi system costs $392 more than a laptop. 4 such laptops cost as much as 2 computers. If each computer costs $640. Find the cost of 6 hi-fi systems.
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A hi-fi system costs $392 more than a laptop. 4 such laptops cost as much as 2 computers. If each computer costs $640. Find the cost of 6 hi-fi systems.