Find the equilibrium price of the following: (1) Qd = -20 + 3p Qd = 220 – 5p (2) Qd = -45 + 8p Qd = 125 – 2p

Find the equilibrium price of the following:
(1)
Qd = -20 + 3p
Qd = 220 – 5p

(2)
Qd = -45 + 8p
Qd = 125 – 2p