Math Problem Statement
Solve the compound inequality -2 < -5x + 5 ≤ 5 and express the solution in interval notation.
Solution
Let's analyze the inequality from the uploaded image:
The inequality is:
We need to solve this compound inequality and express the solution in interval notation.
Step 1: Break the compound inequality into two parts
- Solve
- Solve
Step 2: Solve each part
Part 1: Solve
- Subtract 5 from both sides:
- Divide by , remembering to reverse the inequality sign:
Part 2: Solve
- Subtract 5 from both sides:
- Divide by , remembering to reverse the inequality sign:
Step 3: Combine the solutions
From the two parts, we know:
This means lies in the interval .
Final Answer:
The solution set in interval notation is:
Would you like a detailed explanation of any step or further clarification?
Relative Questions:
- How do you solve compound inequalities involving "less than and equal to"?
- What are the rules for flipping inequality signs when dividing by a negative number?
- How do you convert compound inequalities into interval notation?
- Can we graph the solution of a compound inequality on a number line?
- What is the difference between closed and open intervals?
Tip:
Always double-check the direction of inequality signs, especially when dividing or multiplying by negative numbers.
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Math Problem Analysis
Mathematical Concepts
Algebra
Compound Inequalities
Interval Notation
Formulas
Rules for solving linear inequalities
Interval notation format
Theorems
Properties of inequalities
Reversing inequality signs when multiplying or dividing by negative numbers
Suitable Grade Level
Grades 8-10