Answer:
k=56/5 or 11.2 
Explanation:
 -7(k-8)+2k
distribute -7 into the parentheses 
-7k+56+2k
add the similar variables together 
-5k+56
add -5k onto the other side 
56=5k
divide by 5 
56/5 
(you can divide with a calculator to get a decimal if you would like)