Solve the System by Substitution $$\begin{aligned}x - 7 y & = 6 \\x & = 8 y\end{aligned}$$

question 267

Multiple Choice

Solve the system by substitution.
- $$\begin{aligned}x - 7 y & = 6 \\x & = 8 y\end{aligned}$$

• A) \(\{ ( - 48 , - 6 ) \}\)
• B) \(\{ ( 6,48 ) \}\)
• C) \(\{ ( 48,6 ) \}\)
• D) \(\left\{ \left( \frac { 7 } { 15 } , \frac { 2 } { 5 } \right) \right\}\)

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Definitions:

Consumer Surplus

The difference between the total amount that consumers are willing to pay for a good or service and the total amount they actually pay.

Marginal Benefit

This is the additional benefit received from the consumption of one more unit of a good or service.

Output Level

Refers to the quantity of goods or services produced by a firm or economy at a given point in time.

Product Markets

Marketplaces where final goods or services are offered to consumers, businesses, and the government.