Suppose that in a certain market the demand function for a product is given by 60p + q = 2100 and the supply function is given by 120p - q = 540. Then a tax of $0.50 per item is levied on the supplier, who passes it on to the consumer as a price increase. Find the equilibrium price and quantity after the tax is levied?
Problems involve market equilibrium after taxation.
Use the following figure to answer Problems.

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140 Supply (after tax) Demand 120 Тах100 Supply (before tax) 80+ 20 40 60 80 100