If $f(x) = |3x - 1|,$ compute all values of $x$ for which $f(f(x)) = x.$  Enter all the solutions, separated by commas.
Question:
If $f(x) = |3x - 1|,$ compute all values of $x$ for which $f(f(x)) = x.$  Enter all the solutions, separated by commas.
Answer:
Let's think step by step.

user
\frac{1}{5}, \frac{1}{4}, \frac{2}{5}, \frac{1}{2}
If $f(x) = |3x - 1|,$ compute all values of $x$ for which $f(f(x)) = x.$  Enter all the solutions, separated by commas.
train