Final answer:
When the demand curve decreases while the supply curve increases, the new equilibrium price will decrease and the new equilibrium quantity will increase.
Step-by-step explanation:
When the demand curve decreases while the supply curve increases, the new equilibrium price and quantity will depend on the magnitude and direction of the shifts. However, as a general rule, when the demand curve shifts downwards and the supply curve shifts upwards, the new equilibrium price will decrease and the new equilibrium quantity will increase.