The inequality $|x| \leq 7$ means that the absolute value of $x$ is less than or equal to 7. This can be rewritten as:

$-7 \leq x \leq 7$

Therefore, the solution in interval notation is:

$[-7, 7]$

Would you like further details or have any questions?

Here are 5 related questions you might find interesting:

1. How would the interval change if the inequality was $|x| < 7$?
2. What is the solution to $|x| \geq 7$ in interval notation?
3. How do you solve inequalities with absolute values involving a variable on both sides, such as $|x + 3| \leq 5$?
4. What is the graphical representation of the solution to $|x| \leq 7$?
5. How does the interval notation change if you replace the inequality with $|x| > 7$?

Tip: Always remember that solving absolute value inequalities involves considering both the positive and negative scenarios for the expression inside the absolute value.