Math Problem Statement

ǀ 2x – 8 ǀ < 14

Solution

To solve the inequality 2x8<14|2x - 8| < 14, we need to consider the two cases for absolute value inequalities. This can be split into two separate inequalities:

  1. 2x8<142x - 8 < 14
  2. 2x8>142x - 8 > -14

Solving the first inequality:

2x8<142x - 8 < 14 Add 8 to both sides: 2x<222x < 22 Now, divide both sides by 2: x<11x < 11

Solving the second inequality:

2x8>142x - 8 > -14 Add 8 to both sides: 2x>62x > -6 Now, divide both sides by 2: x>3x > -3

Combine both inequalities:

The solution to the inequality 2x8<14|2x - 8| < 14 is: 3<x<11-3 < x < 11

So, the solution is x(3,11)x \in (-3, 11).

Would you like further details on this solution?

Here are five follow-up questions related to this:

  1. How do you solve absolute value equations instead of inequalities?
  2. What is the difference between strict inequalities and non-strict inequalities?
  3. How do you graph the solution to an absolute value inequality?
  4. Can this type of problem appear in real-world situations? If so, how?
  5. How would you handle absolute value inequalities that have a greater-than condition?

Tip: When solving absolute value inequalities, always split the inequality into two cases: one for the positive case and one for the negative case.

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Math Problem Analysis

Mathematical Concepts

Algebra
Inequalities
Absolute Value

Formulas

|a| < b → -b < a < b

Theorems

Absolute value inequality properties

Suitable Grade Level

Grades 7-9