The expression you provided is:

$7 + (-8) \times 9$

To solve it, follow the order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)):

1. Multiply $-8$ by $9$:

   $-8 \times 9 = -72$

2. Add $7$ to $-72$:

   $7 + (-72) = 7 - 72 = -65$

So, the result is:

$\boxed{-65}$

Would you like more details, or do you have any questions?

Related Questions:

1. What is the result of $7 - 8 \times 9$?
2. How do you solve expressions involving negative numbers?
3. What happens when you change the order of operations in a math problem?
4. How does multiplication affect the sign of a number?
5. How would this expression change if it were $7 \times (-8) + 9$?

Tip:

Always remember to perform multiplication and division before addition and subtraction when solving expressions!