Math Problem Statement

Solve the absolute value inequality: |x + 4| > 3

Solution

The inequality presented is:

x+4>3|x + 4| > 3

To solve this, we break it into two cases because the absolute value inequality A>B|A| > B can be written as two inequalities:

x+4>3orx+4<3x + 4 > 3 \quad \text{or} \quad x + 4 < -3

Case 1: x+4>3x + 4 > 3

Solve for xx: x>34x > 3 - 4 x>1x > -1

Case 2: x+4<3x + 4 < -3

Solve for xx: x<34x < -3 - 4 x<7x < -7

Thus, the solution to the inequality is: x>1orx<7x > -1 \quad \text{or} \quad x < -7

In interval notation, this solution is: (,7)(1,)(-\infty, -7) \cup (-1, \infty)

Would you like any further details or clarifications?

Here are some related questions you might find useful:

  1. How do we solve absolute value inequalities where the inequality sign is \leq?
  2. What is the difference between strict inequalities >> and non-strict inequalities \geq?
  3. Can absolute value inequalities have solutions that are all real numbers?
  4. How do we graph the solution set of an absolute value inequality on a number line?
  5. What happens if the inequality is x+4=3|x + 4| = 3 instead of >3> 3?

Tip: When solving absolute value inequalities, always remember to split them into two cases—positive and negative—to find all possible solutions.

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Math Problem Analysis

Mathematical Concepts

Absolute Value
Inequalities
Algebra

Formulas

|A| > B can be written as A > B or A < -B

Theorems

Absolute Value Inequality Theorem

Suitable Grade Level

Grades 9-11