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For a certain value of k, the system

 

\begin{align*}
x + y + 3z &= 10, \\
-4x + 3y + 5z &= 7, \\
kx + z &= 3
\end{align*}


has no solutions. What is this value of k?

 Feb 22, 2022
edited by Alan  Feb 22, 2022
 #1
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As follows:

 Feb 22, 2022

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