Math Problem Statement

Solve -9 < 4x + 3 ≤ 11.

Solution

Let's solve the compound inequality given in the image:

9<4x+311-9 < 4x + 3 \leq 11

Step 1: Solve the first part of the inequality.

9<4x+3-9 < 4x + 3 Subtract 3 from both sides: 93<4x-9 - 3 < 4x 12<4x-12 < 4x Divide by 4: 3<x-3 < x This can also be written as: x>3x > -3

Step 2: Solve the second part of the inequality.

4x+3114x + 3 \leq 11 Subtract 3 from both sides: 4x84x \leq 8 Divide by 4: x2x \leq 2

Step 3: Combine the two inequalities.

We now have: x>3andx2x > -3 \quad \text{and} \quad x \leq 2 This is written as: 3<x2-3 < x \leq 2

Conclusion:

The solution corresponds to the inequality where xx is greater than 3-3 and less than or equal to 22.

The correct answer is option A: x>3x > -3 and x2x \leq 2.

Would you like more details or have any questions?

Here are five related questions for further practice:

  1. How would you solve the inequality 2x+5152x + 5 \leq 15 and x3>1x - 3 > -1?
  2. What steps would you follow to solve the compound inequality 1<3x271 < 3x - 2 \leq 7?
  3. How do you express the solution set of 5<2x1<9-5 < 2x - 1 < 9 using interval notation?
  4. Can a compound inequality have a solution where no values of xx satisfy both inequalities? Explain with an example.
  5. What does it mean if the solution to a compound inequality is all real numbers?

Tip: Always remember to consider whether to use "and" or "or" when combining inequalities—this affects whether you're looking for the intersection or union of the solution sets.

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Math Problem Analysis

Mathematical Concepts

Algebra
Compound Inequalities
Linear Inequalities

Formulas

Basic operations with inequalities
Combining inequalities

Theorems

Properties of inequalities
Transitive property

Suitable Grade Level

Grades 8-10