Solve the Inequality: Understanding |5x-10| > 15

Question

Given:

\left|5x-10\right|>15

Which of the following statements is necessarily true?

Video Solution

Step-by-Step Solution

To solve the inequality 5x10>15 \left|5x-10\right| > 15 , we rewrite it as two separate inequalities:

  • First inequality: 5x10>15 5x - 10 > 15
  • Second inequality: 5x10<15 5x - 10 < -15

Let's solve each one:

For the first inequality 5x10>15 5x - 10 > 15 :
Add 10 to both sides: 5x>255x > 25
Divide both sides by 5: x>5x > 5

For the second inequality 5x10<15 5x - 10 < -15 :
Add 10 to both sides: 5x<55x < -5
Divide both sides by 5: x<1x < -1

Combining these solutions, we have:
x>5x > 5 or x<1x < -1

Therefore, the correct statement regarding the solution set is: x>5 x > 5 or x<1 x < -1 .

Answer

x>5 or x<-1