you have 5 min. thx! bless you!

Answer:
Hi there!
[tex]\:\mathsf{\frac{k}{8}\:+\:8\:=\:19}[/tex]
So,
=> [tex]\:\mathsf{\frac{k}{8}\:+\:8\:=\:19}[/tex]
=> [tex]\:\mathsf{\frac{k+64}{8}\:=\:19}[/tex]
=> [tex]\:\mathsf{k\:+\:64\:=\:19\:×\:8}[/tex]
=> [tex]\:\mathsf{k\:+\:64\:=\:152}[/tex]
=> [tex]\:\mathsf{k\:+\:=\:152\:-\:64}[/tex]
=> [tex]\:\fbox{k\:=\:88}[/tex]
[tex]\:\sf\purple{Hope\:this\:helps\:you!\::)}[/tex]