To simplify the expression $7(2 + 3x)$, follow the distributive property:

$7(2 + 3x) = 7 \cdot 2 + 7 \cdot 3x$

This gives:

$7(2 + 3x) = 14 + 21x$

So, the simplified expression is:

$14 + 21x$

Would you like further details or have any questions about this?

Here are 5 related questions:

1. How do you solve for $x$ in the equation $7(2 + 3x) = 35$?
2. What is the value of $7(2 + 3x)$ when $x = 2$?
3. How does the distributive property work in more complex expressions?
4. How would you factor an expression like $14 + 21x$?
5. Can the expression $7(2 + 3x)$ represent a line in coordinate geometry?

Tip: Always remember to distribute multiplication to every term inside the parentheses!