Find the value of k so that the lines 3x +2y=6 and kx-4y=9 will be parallel.
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-2× (3x + 2y ) = 6×-2
-6x - 4y = -12 eq 1
kx - 4y = 9 eq 2
subtract eq 2 from eq1
-6x-4y-kx+4y=-12-9
(-6-k)×x= -21
so value of k must be 1
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