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Industry supply and demand are given by:

Qd = 1000 - 2P; Qs = 3P

What is the equilibrium price and quantity? At a price of $100, will there be a
shortage or a surplus and how large will it be? At a price of $300, will there be a shortage or a surplus, and how large will it be?

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Solution Summary

Provides steps necessary to determine equilibrium price and quantity.

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Solution:

Qd = 1000 - 2P
Qs = 3P
In equilibrium Qd=Qs
Equating Qd and Qs we get,
1000-2P=3P
1000=5P
P=200
Equilibrium price is $200
Substituting the value of P in demand equation ...

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