Math Problem Statement

Solve the inequality and graph the solution on the line provided. minus, 2, x, minus, 4, is greater than, 10 −2x−4> 10

Solution

We are tasked with solving the inequality:

2x4>10-2x - 4 > 10

Step-by-step solution:

  1. Add 4 to both sides: 2x4+4>10+4-2x - 4 + 4 > 10 + 4 2x>14-2x > 14

  2. Divide both sides by -2: When dividing by a negative number, we must reverse the inequality sign. 2x2<142\frac{-2x}{-2} < \frac{14}{-2} x<7x < -7

So, the solution is: x<7x < -7

Graphing the solution on a number line:

  • Draw a number line.
  • Place an open circle at x=7x = -7 because 7-7 is not included in the solution (since the inequality is strict: <<).
  • Shade the line to the left of 7-7, indicating that xx can be any number less than 7-7.

Would you like me to generate a graph of the solution?


Here are 5 related questions for practice:

  1. Solve 3x+5>143x + 5 > 14.
  2. Solve x+37-x + 3 \leq 7.
  3. What happens when you multiply or divide by a negative number in an inequality?
  4. Solve and graph 52x95 - 2x \leq 9.
  5. How would you solve 4x2>2x+84x - 2 > 2x + 8?

Tip: Always remember to reverse the inequality sign when multiplying or dividing by a negative number.

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Math Problem Analysis

Mathematical Concepts

Inequalities
Linear Equations

Formulas

Basic linear inequality manipulation

Theorems

Inequality reversal when dividing by a negative number

Suitable Grade Level

Grades 8-10