Answer:
k=4
Explanation:
First, distribute the 2 on the left side 
2 (k - 5) + 3k = k + 6
2*k +2*-5 +3k=k+6
2k-10+3k=k+6 
Combine like terms on the left side 
5k-10=k+6
Add 10 on both sides 
5k=k+16
Subtract k on both sides 
4k=16 
Divide by 4 on both sides 
k=4 
Hope this helps! :)