The pair of linear equations 3a+4b=k, 9a...

The pair of linear equations 3a+4b=k, 9a+12b =6 have infinitely many solutions when,

A

k=-2

B

k=3

C

k=2

D

k=-3

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CPC CAMBRIDGE PUBLICATION-PRACTICE QUESTION PAPER 12-ANSWER THE FOLLOWING QUESTION

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