need help with # 2 asap! due today helpppp plss

BK = AK + 5
and AK + BK = 12
AK - BK = -5 Adding:-
2AK = 7
AK = 3.5
So BK = 12 - 3.5 = 8.5
Answer AK = 3.5 and BK = 8.5
Look at the picture.
The equation:
[tex]|\overline{AK}|+|\overline{KB}|=|\overline{AB}|\\\\(x-5)+x=12\\\\2x-5=12\ \ \ \ |+5\\\\2x=17\ \ \ \ |:2\\\\x=8.5\ in\\\\x-5=8.5-5=3.5[/tex]
Answer:
[tex]|\overline{AK}|=3.5\ in\\\\|\overline{KB}|=8.5\ in[/tex]