Math Problem Statement
Solution
Let's solve this step by step based on the questions shown in your uploaded image.
Question 1: Distribute the
The inequality starts as: Distribute to the terms inside the parentheses: The correct option for this step is B: .
Question 2: When dividing or multiplying by a negative, what happens to the inequality?
When dividing or multiplying both sides of an inequality by a negative number, the inequality flips (reverses direction). Therefore, the answer is A: flip.
Question 3: Solve for
From the distributed inequality:
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Add 12 to both sides:
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Divide both sides by . Since we are dividing by a negative, flip the inequality:
The solution is:
Thus, the answer for this step is A: (but note this should be written as , not ).
Let me know if you’d like further clarifications or details!
Expanding Questions:
- What happens to inequalities when you multiply or divide by zero?
- How can you verify solutions to inequalities on a number line?
- What are common mistakes when solving multistep inequalities?
- How does solving inequalities differ from solving equations?
- Why does the inequality sign flip only with negative division or multiplication?
Tip: Always double-check your inequality direction after dividing by a negative to avoid mistakes!
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Math Problem Analysis
Mathematical Concepts
Algebra
Inequalities
Distributive Property
Formulas
Distributive property: a(b + c) = ab + ac
Theorems
Rule of flipping the inequality when dividing or multiplying by a negative number
Suitable Grade Level
Grades 7-9