While there is no drop-down menu options for me to choose. I will show you how to solve this.
[tex]\mathrm{Subtract\:the\:numbers:}\:-16-2=-18 \ \textgreater \ 4k-6=-2k-18[/tex]
[tex]\mathrm{Add\:}6\mathrm{\:to\:both\:sides} \ \textgreater \ 4k-6+6=-2k-18+6 \ \textgreater \ Simplify[/tex]
[tex]4k=-2k-12 \ \textgreater \ \mathrm{Add\:}2k\mathrm{\:to\:both\:sides} \ \textgreater \ 4k+2k=-2k-12+2k[/tex]
Simplify again.
[tex]6k=-12 \ \textgreater \ \mathrm{Divide\:both\:sides\:by\:}6 \ \textgreater \ \frac{6k}{6}=\frac{-12}{6} \ \textgreater \ Simplify \ \textgreater \ k=-2[/tex]
Hope this helps!