SOLUTION: For a certain value of k, the system x+y+3z=10 -4x+2y+5z=7 kx+z=3 has no solutions. What is this value of k?

SOLUTION: For a certain value of k, the system x+y+3z=10 -4x+2y+5z=7 kx+z=3 has no solutions. What is this value of k?

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Question 964779: For a certain value of k, the system
x+y+3z=10
-4x+2y+5z=7
kx+z=3
has no solutions. What is this value of k?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Find the determinant of the system and set it equal to zero,

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