Let's solve the expression step by step:

The given expression is: $(-7) - 3^2$

1. First, calculate the exponent:
   $3^2 = 9$

2. Now substitute this value back into the expression: $(-7) - 9$

3. Finally, perform the subtraction: $-7 - 9 = -16$

So, the result of $(-7) - 3^2$ is: $\boxed{-16}$

Do you need further clarification on any steps or would you like to explore other related topics?

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Here are 5 related questions you might find useful:

1. How do you simplify expressions involving both exponents and negative numbers?
2. What is the order of operations (PEMDAS)?
3. How do you evaluate expressions like $(-4)^2$ versus $-4^2$?
4. What happens when you subtract a negative number from another negative number?
5. How can you solve more complex equations with exponents and negative numbers?

Tip: Always remember the order of operations: Parentheses, Exponents, Multiplication/Division (from left to right), Addition/Subtraction (from left to right).