question_answer

If the pair of linear equations\[\text{2x}+\text{ky}-\text{3}=0\]and\[\text{6x}+\frac{2}{3}\text{y}+\text{7}=0\]has a unique solution, which of the following is true?

A)  \[k=\frac{2}{3}\]                             

B)  \[k\ne \frac{2}{3}\]

C)  \[k=\frac{2}{9}\]             

D)         \[k\ne \frac{2}{9}\]