Answer:
k = -19/6
This picture should help you out.
First you distribute -4 among everything in the parenthesis. You will get -4k - 16.
Next you subtract 3 from -16, to get -19.
After that you add 4k to 2k, to get rid of -4k, and you get 6k.
So 6k = -19, and finally you divide 6 on both sides of the equal sign to get k = -19/6.
Hope this helped :)