Math Problem Statement

-4x + 2(x - 3) ≥ 4x - (3 + 5x) - 7 and -10 < 3x - 4 ≤ 14

Solution

I see the image contains two inequalities. Let me solve each of them step by step:

17. Solve the inequality:

4x+2(x3)4x(3+5x)7-4x + 2(x - 3) \geq 4x - (3 + 5x) - 7

Step-by-step solution:

  1. Distribute the 2 on the left side: 4x+2(x3)=4x+2x6=2x6-4x + 2(x - 3) = -4x + 2x - 6 = -2x - 6 So, the inequality becomes: 2x64x(3+5x)7-2x - 6 \geq 4x - (3 + 5x) - 7

  2. Simplify the right side: 4x(3+5x)7=4x35x7=x104x - (3 + 5x) - 7 = 4x - 3 - 5x - 7 = -x - 10 Now the inequality is: 2x6x10-2x - 6 \geq -x - 10

  3. Add xx to both sides: 2x+x610-2x + x - 6 \geq -10 x610-x - 6 \geq -10

  4. Add 6 to both sides: x4-x \geq -4

  5. Multiply both sides by 1-1 (and reverse the inequality): x4x \leq 4

The solution to the inequality is: x4x \leq 4


18. Solve the compound inequality:

10<3x414-10 < 3x - 4 \leq 14

Step-by-step solution:

  1. Split the inequality into two parts and solve each:

    • Solve the left part: 10<3x4-10 < 3x - 4 Add 4 to both sides: 6<3x-6 < 3x Divide by 3: 2<x-2 < x This is: x>2x > -2

    • Solve the right part: 3x4143x - 4 \leq 14 Add 4 to both sides: 3x183x \leq 18 Divide by 3: x6x \leq 6

  2. Combine both results: 2<x6-2 < x \leq 6

The solution to the compound inequality is: 2<x6-2 < x \leq 6


Would you like a detailed explanation of any part, or perhaps the graph for these solutions?

Here are 5 related questions for further practice:

  1. How do you graph the solution of the inequality x4x \leq 4?
  2. What happens if the inequality involves multiplying or dividing by a negative number?
  3. Can you solve the inequality 3x+5>2x73x + 5 > 2x - 7?
  4. How do you solve absolute value inequalities?
  5. Can you solve a system of inequalities, such as x+y3x + y \geq 3 and 2xy<52x - y < 5?

Tip: When solving inequalities, always reverse the inequality sign when multiplying or dividing both sides by a negative number.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Inequalities
Linear Equations
Algebra

Formulas

Distributive Property
Solving Inequalities by Addition/Subtraction
Solving Inequalities by Multiplication/Division

Theorems

Properties of Inequalities

Suitable Grade Level

Grades 9-11