Question 793216
The demand and supply functions for a newspaper company are, respectively, q = −10,000p + 3,100 and q = 2,000p + 700, where p is the price in dollars.
 At what price should the newspapers be sold so that there is neither a surplus nor a shortage of papers? 
:
This means demand = supply, q = q, therefore
2000p + 700 = -10000p + 3100
2000p + 10000p = 3100 - 700
12000p = 2400
p = 2400/12000
p = $.20 

Not that hard, right?