First you had to add by one-fourth from both sides of equation form.
[tex]x-\frac{1}{4}+ \frac{1}{4}= \frac{3}{8}+ \frac{1}{4}[/tex]
Then simplify.
[tex]x-\frac{1}{4}+ \frac{1}{4}=x[/tex]
[tex]\frac{3}{8}+ \frac{1}{4}= \frac{5}{8}[/tex]
[tex]x=\frac{5}{8}[/tex]
Final answer: [tex]\boxed{x=5/8}[/tex]
Hope this helps!
And thank you for posting your question at here on brainly, and have a great day.
-Charlie
