Question
If the system of equations
kx + y + 2z = 1
3x $-$ y $-$ 2z = 2
$-$2x $-$2y $-$4z = 3
has infinitely many solutions, then k is equal to __________.
kx + y + 2z = 1
3x $-$ y $-$ 2z = 2
$-$2x $-$2y $-$4z = 3
has infinitely many solutions, then k is equal to __________.
Correct Answer
21