Given the demand equation Qd = 8000 - 400P and the supply equation Qs = 2000 + 600P, calculate the equilibrium price and quantity.

• A. P = 6, Q = 5600
• B. P = 7, Q = 5800
• C. P = 8, Q = 6000
• D. P = 5, Q = 5000

Answer: (A)