Math Problem Statement

2∣x−5∣+7<11

Solution

We are given the inequality:

2x5+7<112|x - 5| + 7 < 11

Step 1: Isolate the absolute value term

First, subtract 7 from both sides to isolate the absolute value term:

2x5<1172|x - 5| < 11 - 7 2x5<42|x - 5| < 4

Step 2: Divide both sides by 2

Now, divide both sides of the inequality by 2:

x5<42|x - 5| < \frac{4}{2} x5<2|x - 5| < 2

Step 3: Break the absolute value into two inequalities

The absolute value inequality x5<2|x - 5| < 2 means that the expression inside the absolute value lies between 2-2 and 22. Therefore, we can write:

2<x5<2-2 < x - 5 < 2

Step 4: Solve the inequality

Now, solve for xx by adding 5 to all parts of the inequality:

2+5<x<2+5-2 + 5 < x < 2 + 5 3<x<73 < x < 7

Final answer:

The solution is:

3<x<73 < x < 7

This means xx lies in the interval (3,7)(3, 7).

Do you want any further details or have any questions?

Here are 5 related questions for practice:

  1. Solve the inequality 3x45<73|x - 4| - 5 < 7.
  2. Solve x+25|x + 2| \leq 5.
  3. What is the solution to 5x1>155|x - 1| > 15?
  4. Solve for xx in 4x+3+2104|x + 3| + 2 \geq 10.
  5. Solve the equation 2x3=7|2x - 3| = 7.

Tip: When solving absolute value inequalities, remember to break them into two separate inequalities.

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Math Problem Analysis

Mathematical Concepts

Algebra
Absolute Value
Inequalities

Formulas

|x - a| < b translates to -b < x - a < b

Theorems

Absolute Value Inequality

Suitable Grade Level

Grades 9-11