Math Problem Statement

2 (x + 4) greater than - 12

Solution

To solve the inequality:

2(x+4)>122(x + 4) > -12

Step 1: Distribute the 2 on the left-hand side.

2x+8>122x + 8 > -12

Step 2: Subtract 8 from both sides.

2x>1282x > -12 - 8 2x>202x > -20

Step 3: Divide both sides by 2 to solve for xx.

x>202x > \frac{-20}{2} x>10x > -10

Final Answer:

x>10x > -10

Let me know if you need more details or have any questions!


Here are five related questions to expand on this:

  1. How do you solve inequalities that involve division by a negative number?
  2. Can you explain how to represent x>10x > -10 on a number line?
  3. What happens if the inequality had been 2(x+4)<122(x + 4) < -12 instead?
  4. How would the solution change if the inequality had absolute values involved, e.g., 2x+4>122|x + 4| > -12?
  5. What is the difference between strict inequalities (>>) and non-strict inequalities (\geq)?

Tip: Always reverse the inequality sign when multiplying or dividing both sides by a negative number!

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Inequalities

Formulas

Distributive Property
Inequality Properties

Theorems

Properties of Inequalities

Suitable Grade Level

Grades 7-9