Use the Gauss-Jordan Method to Solve the System of Equations $$\begin{array}{l}7 x-2 y+6 z=4 \\-8 x+6 y+4 z=8 \\35 x-10 y+30 z=-2\end{array}$$

question 464

Multiple Choice

Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, let the last
variable be the arbitrary variable.
- $$\begin{array}{l}7 x-2 y+6 z=4 \\-8 x+6 y+4 z=8 \\35 x-10 y+30 z=-2\end{array}$$

• A) \( \{(4,8,-2)\} \)
• B) \( \{(-5 z+6,7 z-10, z)\} \)
• C) \( \varnothing \)
• D) \( \{(5,5,-1)\} \)

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