Q5 of 266 Page 4

Find the value of k for which the following system of equations has a unique solution:


Kx + 2y = 5


3x + y = 1


Multiplying eq2 by 2 and subtracting from eq1


(k – 6)x = 3


⇒ x = 3/(k – 6)


Thus, for k ≠ 6 the system has unique solution


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