Math Problem Statement

Solve the inequality |3 - 2x| > 11 and graph the solution set.

Solution

To solve the inequality 32x>11|3 - 2x| > 11, we need to break it down into two separate cases, since the absolute value inequality can be expressed as:

32x>11or32x<11.3 - 2x > 11 \quad \text{or} \quad 3 - 2x < -11.

Let's solve each case individually:

Case 1: 32x>113 - 2x > 11

  1. Subtract 3 from both sides: 2x>8-2x > 8
  2. Divide by -2 (remember to flip the inequality sign when dividing by a negative number): x<4x < -4

Case 2: 32x<113 - 2x < -11

  1. Subtract 3 from both sides: 2x<14-2x < -14
  2. Divide by -2 (again, flip the inequality sign): x>7x > 7

Solution Set

The combined solution is x<4x < -4 or x>7x > 7. In interval notation, this is:

(,4)(7,)(-\infty, -4) \cup (7, \infty)

Thus, the correct answer is option A, with the solution set being (,4)(7,)(-\infty, -4) \cup (7, \infty).

Would you like more details or have any questions?

Here are some related questions to explore:

  1. How do you solve absolute value inequalities in general?
  2. How would the solution change if the inequality were 32x11|3 - 2x| \leq 11?
  3. What happens if the inequality were 32x<11|3 - 2x| < -11? Is there any real solution?
  4. How would you graph the solution set on a number line?
  5. Can you solve 2x3>5|2x - 3| > 5 using a similar method?

Tip: When solving absolute value inequalities, remember to split them into two cases based on the definition of absolute value, and always flip the inequality when multiplying or dividing by a negative number.

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Math Problem Analysis

Mathematical Concepts

Algebra
Inequalities
Absolute Value

Formulas

Absolute value inequality: |A| > B

Theorems

Properties of inequalities

Suitable Grade Level

Grades 9-12