Find all solutions of the following equation algebraically. 
Definitions:
Substitutable Products
Substitutable products are goods or services that can be used in place of each other by consumers due to their similar functions or characteristics.
Price Range
The spread between the highest and lowest selling price of a product or service in the market.
Pure Competition
A market structure characterized by a large number of small firms producing identical products, with no single firm able to influence the market price.
Commodity Products
Basic, undifferentiated products or raw materials that are interchangeable with others of the same type.
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