The first plant produces 5x -12 items items daily than the second plant.
The first plant has a production level of 7x - 19 items while the second plant have a production level of 2x - 7 items.
The number of items the first plant has than the second plant = 7x - 19 items - (2x - 7 items) = 5x -12 items
Hence the first plant produces 5x -12 items items daily than the second plant.
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