Math Problem Statement

Write the following expression as a single integer.

-(-15) – 45

30

60

-30

-60

Solution

Let's simplify the expression step-by-step:

(15)45-(-15) - 45

  1. The negative of 15-15 is +15+15, so:

154515 - 45

  1. Now, subtract 4545 from 1515:

1545=3015 - 45 = -30

Thus, the expression simplifies to 30-30.

The correct answer is:

30\boxed{-30}

Would you like to explore more about simplifying expressions, or do you have any questions?

Here are 5 related questions you might find useful:

  1. How do you simplify an expression with multiple negative signs?
  2. What happens when you subtract a negative number from a positive number?
  3. How do you handle subtraction and addition of integers?
  4. How do you evaluate expressions with parentheses?
  5. What is the difference between subtracting and adding negative numbers?

Tip: When working with negative numbers, remember that subtracting a negative is the same as adding its positive counterpart.

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Math Problem Analysis

Mathematical Concepts

Integers
Simplification of Expressions
Negative Numbers
Subtraction

Formulas

-(-a) = +a
a - b = c

Theorems

Properties of Negative Numbers
Simplification of Expressions

Suitable Grade Level

Grades 5-7