Solve the System of Equations $$\begin{array}{l}-3 x+y+6 z=-7 \\7 x+3 y+4 z=-14\end{array}$$

question 20

Multiple Choice

Solve the system of equations. Let z be the parameter.
- $$\begin{array}{l}-3 x+y+6 z=-7 \\7 x+3 y+4 z=-14\end{array}$$

• A) \( (7+14 z,-91+7 z, z) \)
• B) \( \left(\frac{7}{16}+\frac{7}{8} z,-\frac{91}{16}-\frac{27}{8} z, z\right) \)
• C) \( \left(\frac{7}{16}+\frac{7}{8} z,-7+6 z, z\right) \)
• D) \( \left(\frac{7}{16}+\frac{7}{8} z,-7-6 z, z\right\} \)

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