Math, asked by thippeswamy0544, 2 months ago

9. For which value of K does X+KY+7=0 and 3X+12Y+21=0 coinside each other a) 1 b) 2 c) 3 d) 4

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Answered by parshukush

12

Step-by-step explanation:

(d)4 is the answer.Plz mark me the brainliest.

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