Question

26. What is the value of k, if the value of Dy, for the equations 3x +y=1 and
2x - ky=3 is 7?
(A) 22
(B) – 22
(C) 11
(D) – 11​

Answer 1

Answer:

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since,x=2

y=-3

2×2-k(-3)=3

4+k=3

k=-1

Step-by-step explanation: