Solve the system using elimination and back-substitution. 
Definitions:
Slope
The rate at which a line inclines or declines, representing the ratio of the vertical change to the horizontal change between two points on the line.
Isocost Line
A graphical representation of all the different combinations of inputs that can be purchased with a specific total cost.
Price Of Capital
The cost of using capital goods in production, which includes interest rates paid on loans or the rate of return required by investors on capital.
Price Of Labor
The wage or compensation given to workers for their labor, often determined by skill level, demand, and market conditions.
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