Math Problem Statement

4∣x+4∣+6>18

Solution

Let's solve the inequality:

4x+4+6>184|x+4| + 6 > 18

Step 1: Isolate the absolute value term

First, subtract 6 from both sides:

4x+4>1864|x+4| > 18 - 6

This simplifies to:

4x+4>124|x+4| > 12

Step 2: Divide by 4

Now, divide both sides by 4:

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

Step 3: Break into two cases

Since we are dealing with an absolute value inequality, we have two cases:

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

    Subtract 4 from both sides:

    x>1x > -1

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

    Subtract 4 from both sides:

    x<7x < -7

Step 4: Combine the results

The solution is the union of both cases:

x>1orx<7x > -1 \quad \text{or} \quad x < -7

In interval notation, the solution is:

(,7)(1,)(-\infty, -7) \cup (-1, \infty)

Do you want further details or have any questions about this solution?

Here are five related questions for further practice:

  1. Solve 3x25<103|x-2| - 5 < 10.
  2. Solve x+7+310|x + 7| + 3 \leq 10.
  3. Find the solution to 5x1+4>95|x - 1| + 4 > 9.
  4. Solve 22x+1312|2x + 1| - 3 \geq 1.
  5. Solve x32<4|x-3| - 2 < 4.

Tip: Always break absolute value inequalities into two cases to solve them accurately.

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Math Problem Analysis

Mathematical Concepts

Algebra
Absolute Value Inequalities

Formulas

|x + a| > b ⟶ (x + a > b) or (x + a < -b)
Interval Notation for Solutions

Theorems

Properties of Absolute Values

Suitable Grade Level

Grades 9-12