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Unformatted text preview: supply equation). The answers will be the same since = = Qd Qs EQ :Lets use the demand equation =Qd 120 4Pd to find = Qd EQ = EQ 120 4Pd We know Pd = 4.29 (always use the actual value to calculate, not the absolute value) = ( . ) EQ 120 4 4 29 = + . EQ 120 17 16 Sign changes when we multiply two negative numbers = . EQ 137 16 or 137 So form part (a) and (b) we can say that the equilibrium price (Ep) is $4.29 and equilibrium quantity (E Q ) is 137 units....
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 Spring '10
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