Question

PLEASE SOLVE It ................​

Answer 1

$kx-12=3k\\kx=3k+12\\x=\dfrac{3k+12}{k}=3+\dfrac{12}{k}$                           $(k\not =0)$

For $x$ to be an integer, $k$ must be a divisor of 12. $k$ must be also positive, therefore $k\in\{1,2,3,4,6,12\}$.

$n(k)=6$, therefore the last answer is correct.

Answer 2

Step-by-step explanation:

option 4=6

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