Please help me out on this no link, no bots, no stealing points, don’t answer if you don’t know

Answer:
x = 15
Step-by-step explanation:
[tex]x^{2} + 20^{2} =25^{2}[/tex]
[tex]x^{2} +400=625[/tex]
[tex]x^{2} =225\\[/tex]
[tex]\sqrt{x[/tex]
=x
[tex]\sqrt{225}[/tex]
= 15
[tex]x=15[/tex]