For what values of k will the pair of equations 3x+4y=12 and kx+12y=30 does not have a unique solution .
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Originally Posted by thereddevils For what values of k will the pair of equations 3x+4y=12 and kx+12y=30 does not have a unique solution . Multiply the first equation by 3 and then eliminate the y's. You should find that $\displaystyle (9-k)x=6$. For which value of k will make this equation nonsense?
Thanks prove it , 9 .....
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