Solve the System $$\begin{array} { l } - 4 x - 6 y - 5 z = 9 \\4 ( x + y ) + 3 z = x - 5 y + 9 \\6 ( x + y ) - 7 z = 2 x + 3 y + 18\end{array}$$

question 119

Multiple Choice

Solve the system. If a system has one unique solution, write the solution set. Otherwise, determine the number of solutions to the system, and determine whether the system is inconsistent, or the equations are dependent.
- $$\begin{array} { l } - 4 x - 6 y - 5 z = 9 \\4 ( x + y ) + 3 z = x - 5 y + 9 \\6 ( x + y ) - 7 z = 2 x + 3 y + 18\end{array}$$

• A) \(\{ ( 9,9,18 \} )\)
• B) \(\{ ( - 3,3 , - 3 ) \}\)
• C) Infinitely many solutions; dependent
• D) No solution; inconsistent

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Definitions:

Yield To Maturity

The total expected return on a bond if held to its maturity date, including both interest payments and any gain or loss if the bond was purchased at a discount or premium.

Market Price

The current price level for transactions involving assets or services in a trade environment.

Market Price

The current exchange price for an asset or service in the marketplace.

Discount Rate

The interest rate used to determine the present value of future cash flows or to discount future obligations.