Math Problem Statement

Consider the following inequality:

−2x+4≥−8 Step 1 of 2 : Solve the linear inequality for the given variable. Simplify and express your answer in algebraic notation.

Solution

Let's solve the inequality step by step:

Given inequality: 2x+48-2x + 4 \geq -8

Step 1: Isolate the term with xx

First, subtract 4 from both sides of the inequality: 2x+4484-2x + 4 - 4 \geq -8 - 4 This simplifies to: 2x12-2x \geq -12

Step 2: Solve for xx

Now, divide both sides by 2-2. Remember, when dividing or multiplying both sides of an inequality by a negative number, the inequality sign flips: x122x \leq \frac{-12}{-2} x6x \leq 6

Final answer:

x6x \leq 6

Let me know if you'd like more details or have any questions!


Here are five related questions to expand your understanding:

  1. How does the solution change if we reverse the inequality 2x+48-2x + 4 \leq -8?
  2. What happens when multiplying or dividing an inequality by a negative number?
  3. How would you express the solution on a number line?
  4. Can you write the solution in interval notation?
  5. How would you verify if a given value of xx satisfies the inequality?

Tip: Always flip the inequality sign when multiplying or dividing by a negative number!

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Inequalities

Formulas

Basic inequality manipulation
Division and multiplication rules for inequalities

Theorems

Inequality theorem (flipping the inequality sign when multiplying or dividing by a negative number)

Suitable Grade Level

Grades 7-9