Answer:
K = 9 ;)
Explanation:
k=9
1/4k = 3 (-1/4k + 3)
Distribute the 3
1/4k = -3/4k + 9
Add 3/4 k to each side
1/4k +3/4 k = -3/4k +3/4 k + 9
4/4k = 9
k =9
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