To solve the expression \(-3 + 8 + 12 - 7 - 9\), we can follow these steps:

1. Start by combining the positive and negative numbers separately:

\[
-3 + 8 + 12 - 7 - 9
\]

2. Combine the negative numbers:

\[
-3 - 7 - 9 = -19
\]

3. Combine the positive numbers:

\[
8 + 12 = 20
\]

4. Now, combine the results from steps 2 and 3:

\[
20 - 19 = 1
\]

Therefore, the value of the expression is:

\[
\boxed{1}
\]

Would you like more details or have any questions?

Here are some related questions:

1. How do you combine positive and negative integers in an expression?
2. What is the associative property of addition?
3. How can you simplify complex arithmetic expressions step-by-step?
4. What strategies can help in verifying the accuracy of arithmetic calculations?
5. How do you handle multiple operations in an arithmetic expression?
6. What are some common mistakes to avoid when adding and subtracting integers?
7. How does understanding integer operations help in solving algebraic equations?
8. What are the rules for adding and subtracting multiple negative numbers?

**Tip:** When simplifying arithmetic expressions, it’s helpful to first group and simplify the positive and negative terms separately.

Learn how to solve the arithmetic expression -3 + 8 + 12 - 7 - 9 step-by-step with a detailed solution. This problem involves combining integers and understanding arithmetic operations. Suitable for students in Grades 6-8.

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