Solve and graph the solution set on a number line: 3|2x-1| ≥ 21

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Installed the following inequality and graphics solution set two times absolute value to X minus eight is greater than or equal to 16. Let's go ahead and look, we have two absolute value to X -8, Greater than equal to 16. Now, I want to try and see if we can solve for X. So do I buy two? Besides we get absolute value to X minus eight, It's great that an equal to eight. Now we have an absolute value going to have a negative answer and a positive answer for absolute value, Something split up or absolute value like this. Let's say two X -8 Spirit and equal to eight And two X -8 is less than equal to negatively. Does he have two answers will have a positive and a negative. Let's go ahead and solve for X Over here we add eight, two X greater equal to zero. I mean sorry that 0 16 and divide by two X squared and equal to a over here we add eight. Now this one is zero two X less than equal to zero, which gives us X less than equal to zero. So when they find our domain. We have X less than equal to zero, X, greater than equal to eight X, less than equal to zero implies to have negative infinity to zero with a square bracket and 8 to infinity. Now, I wouldn't forget which number line has this domain. Well, if you look at our answers, the only one that has our number line is answer D okay. I hope to help you solve the problem. Thank you for watching. Goodbye.

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Solve and graph the solution set on a number line: 3|2x-1| ≥ 21