Q6 of 266 Page 4

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




Multiplying eq2 by 2 and subtracting from eq1


⇒ (k – 4)y + 6 = 0


⇒ y = 6/(4 – k)


Thus, for k ≠ 4 it has a unique solution


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