Hello there!
First you had to add by five from both sides of equation form.
[tex]x-5+5=16+5[/tex]
And finally simplify by equation.
[tex]x=21[/tex]
[tex]21/3=7[/tex]
[tex]7*3=21[/tex]
[tex]3*7=21[/tex]
[tex]21/7=3[/tex]
Final answer: [tex]\boxed{x=21}[/tex]
Hope this helps!
And thank you for posting your question at here on brainly, and have a great day.
-Charlie
