Question 15855
 Sol'n:

  -2/3k-4=12

3k-4[-2/3k-4=12]
-2=12(3k-4)
-2=36k-48
-2+48=36k
46=36k
46/36=36k/36
46/36=k
1  10/36=k   or   1  5/18=k

therefore the sol'n is k= 1  5/18