question_answer

Indetify which one among the following is the pair of linear equations having a unique solution x = - 3, y = 2.

A) \[\frac{2}{3}x+\frac{7}{2}y=10\]\[~and\text{ }5x+3y=9\]

B) \[\sqrt{3}x-3y=3\sqrt{3}\,\,\,and\,\,\,x+7y=11\] 

C) \[3y=13x+45\,\,and\,\,-7x+3y=27\]                            

D) All the above

E) None of these