The phrase in the image is "six less than one-third of a number."

This can be translated into a mathematical expression. Let the unknown number be represented by $x$.

The expression for "one-third of a number" is: $\frac{1}{3}x$

The phrase "six less than" means subtracting 6 from this value. Therefore, the full expression becomes: $\frac{1}{3}x - 6$

Would you like to solve an equation related to this expression, or explore further? Here are some potential follow-up questions:

1. How do you solve an equation involving this expression if it's equal to a specific value?
2. What happens if "six more than" was used instead of "six less than"?
3. Can this expression be rewritten in a different form?
4. How do we graph a linear function like this?
5. What are some real-world scenarios that involve similar expressions?

Tip: Always carefully translate word problems into mathematical expressions, identifying keywords such as "less than" or "more than" that imply subtraction or addition.