If the System Has Infinitely Many Solutions, Write the Solution $$\begin{array} { l } 5 x - y + z = 8 \\7 x + y + z = 6\end{array}$$

question 437

Multiple Choice

If the system has infinitely many solutions, write the solution set with x arbitrary.
- $$\begin{array} { l } 5 x - y + z = 8 \\7 x + y + z = 6\end{array}$$
$$12 x + 2 z = 14$$

• A) \(\{ ( x , - x - 1 , - 6 x + 7 ) \}\)
• B) \(\{ ( x , - x + 1,6 x - 7 ) \}\)
• C) \(\{ ( x , - x + 1 , - 6 x + 7 ) \}\)
• D) \(\{ ( x , - x + 1,6 x + 7 ) \}\)

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