Did i do this right?? I dont look right @ all to me..

Question

asked Jul 15, 2017 118k views

1 Answer

Luke Tan · Answer 1 · 2017-07-21T01:03:16+0000

You didn't, you mistook the 9 to be a like term with 7k.
What yo actually have to do is:
7k= 6k+9
-6k -6k
k=9

Hope this helps :)