Math Problem Statement

Solution

The problem asks to solve the inequality 2x74<142|x - 7| - 4 < 14 algebraically. Let's go through the steps to solve it.

Step 1: Isolate the absolute value term

Start by adding 4 to both sides of the inequality to isolate the absolute value expression: 2x7<182|x - 7| < 18

Step 2: Divide by 2

Next, divide both sides by 2: x7<9|x - 7| < 9

Step 3: Remove the absolute value

To solve the inequality x7<9|x - 7| < 9, consider the definition of absolute value. The inequality A<B|A| < B implies B<A<B-B < A < B. Therefore: 9<x7<9-9 < x - 7 < 9

Step 4: Solve the resulting compound inequality

Add 7 to each part of the inequality: 9+7<x<9+7-9 + 7 < x < 9 + 7 2<x<16-2 < x < 16

Final Answer:

The solution to the inequality is: x(2,16)x \in (-2, 16)

This means that xx can be any real number between 2-2 and 1616, but not including 2-2 and 1616.

Would you like any further details or have any questions?

Related Questions:

  1. How would the solution change if the inequality were 2x74142|x - 7| - 4 \leq 14?
  2. What is the graphical representation of the solution set on a number line?
  3. How would you solve the inequality if it were 2x74>142|x - 7| - 4 > 14?
  4. What happens to the solution set if the absolute value expression had a different coefficient, such as 3x73|x - 7|?
  5. Can you solve the inequality if the constant term on the right side of the inequality was negative?

Tip:

When isolating an absolute value expression in an inequality, make sure to correctly distribute any multiplicative constants before removing the absolute value. This ensures that your solution is accurate.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Inequalities
Absolute Value

Formulas

-

Theorems

-

Suitable Grade Level

Grades 9-12