Ok we need to solve for x.
First add 5 to both sides.
[tex] \frac{5}{8}x = 10[/tex]
Divide [tex] \frac{5}{8}[/tex] from both sides
[tex]x = 16 [/tex]
(If you don't know how to divide fractions then comment or DM me)
The answer is x = 16
Hope this helped! If you have anymore questions or don't understand, please comment or DM me. :)