For the pair of supply-and-demand equations, where x represents the quantity demanded in units of 1,000 and p is the unit price in dollars, find the equilibrium quantity and the equilibrium price.
3x + 9p - 84 = 0 and 4x - 15p + 77 = 0
equilibrium quantity __________ units
equilibrium price $ __________

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The Answer of For the pair of supply-and-demand equations, where x represents the quantity demanded in units of 1,000 and p is the unit price in dollars, find the equilibrium quantity and the equilibrium price.
3x + 9p - 84 = 0 and 4x - 15p + 77 = 0
equilibrium quantity __________ units
equilibrium price $ __________

For the Pair of Supply-And-Demand Equations, Where X Represents the Quantity