Perform the indicated operations and simplify the expression. 
Definitions:
Heating System
A mechanism or structure designed to provide heat to a building or space, typically involving appliances like furnaces or boilers.
Timer
A device or application used for measuring time intervals, often used to monitor or limit the duration of activities.
Satellite System
A network of satellites working together to provide a variety of services such as communication, navigation, or earth observation from space.
Price
The amount of money required to purchase a product or service, determined by factors such as cost of production, market demand, and competition.
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