Question

Please help, I'll choose brainliest for whoever answers first
√-9k=√16-k
k=

Answer 1

(√-9)K = (√16) - k

√-9 = √-1 * √-9

√-1 = i (imaginary number)

√-9 = 3i

√16 = 4

3i = 4 - k

-k = 3i - 4

k = -3i + 4

Answer 2

the correct answer is -2