Math Problem Statement

Evaluate x + 7 when x = -2 and x = -11

Solution

The problem asks to evaluate the expression x+7x + 7 for two different values of xx.

1. When x=2x = -2:

x+7=2+7=5x + 7 = -2 + 7 = 5

2. When x=11x = -11:

x+7=11+7=4x + 7 = -11 + 7 = -4

Thus, the results are:

  • For x=2x = -2, the expression equals 5.
  • For x=11x = -11, the expression equals -4.

Would you like more details or have any questions? Here are some related questions to practice:

  1. Evaluate x3x - 3 when x=5x = -5 and x=4x = 4.
  2. What is 2x+72x + 7 when x=2x = -2?
  3. Simplify and evaluate 3(x+2)3(x + 2) when x=4x = -4.
  4. Calculate x25x^2 - 5 when x=3x = -3.
  5. Find x+7-x + 7 when x=10x = 10.

Tip: When working with negative numbers, be cautious with signs, especially when adding or subtracting negative values.

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Math Problem Analysis

Mathematical Concepts

Basic Algebra
Negative Numbers

Formulas

x + 7

Theorems

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Suitable Grade Level

Grades 6-8