Question Find the real numbers $x$ that satisfy the equation $|x| = x$. Express the solution set in set-builder notation.

Studdy Solution
Combine the results from STEP_4 and STEP_9 to write the solution in set-builder notation.
The solution set is: $$\{ x \in \mathbb{R} \mid x \geq 0 \}$$
This is the set of all non-negative real numbers.
The real numbers that satisfy the equation $|x| = x$ are all non-negative real numbers, including zero.