Question

If the system of equations 6x - 2y = 3 and Kx - y = 2 has unique solution, then find the value of K

Answer 1

$Two lines ax+by=c………(1) and cx+dy=e…… ..(2) Are has a unique solution If a/c ≠ b/d. In the given equation a=k , b=(-1), c=6, d$


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Answer 2

k/6should not be equal to-2/-1
k/6 should not be equal to 2
k should not be equal to 12
that is all the values other than 12 will give a unique solution