To solve for $4x$, we need the context of the problem or equation you’re working with. Here are a few possibilities:

1. If you’re simplifying $4x$ without any additional operations or context, then $4x$ simply represents a term with $x$ multiplied by 4.
2. If $4x = y$, then $x$ could be solved in terms of $y$ by dividing both sides by 4, giving $x = \frac{y}{4}$.
3. If $4x$ is part of an equation, such as $4x + 3 = 11$, you would solve for $x$ by isolating it: $4x = 11 - 3$ $4x = 8$ $x = \frac{8}{4} = 2$

Could you provide more details or context to help answer this fully?

Would you like more details or explanations? Here are some related questions for further exploration:

1. What if $4x$ was equal to a specific value?
2. How would you solve if $4x$ were part of an inequality, like $4x > 8$?
3. What happens if $4x$ is combined with another term, such as $4x + 5$?
4. How does $4x$ change if $x$ is squared or involves other variables?
5. How would you represent $4x$ graphically if $x$ were a range of values?

Tip: When working with variable terms, isolating the variable is often a good first step in finding a solution.