Need help: Questions number 17 and 19 on College Algebra

[Goku1]

I'm not looking for answers. I'm just looking for someone to show me, step by step, how to solve these two College Algebra math problems. I usually ask on this section of OSBot for these specific questions and I end up learning fairly quickly with one simple example. I'm giving Likes for the people that can do this. ;p

 

The math problems are listed in the link below:

http://puu.sh/aSbE2/d927429926.png

 

http://puu.sh/aSc0t/59d3f0c107.png

[Nitrousek]

1. B

Edited August 14, 2014 by Nitrousek

[Goku1]

1. B

How did you get that answer?

[pRoded]

 

This is for 19. I can 100% guarantee its correct. If you have any questions PM cause I probably won't come back to this thread. glhf

cause he didn't explain

 

[Goku1]

 

This is for 19. I can 100% guarantee its correct. If you have any questions PM cause I probably won't come back to this thread. glhf

cause he didn't explain

 

Awesome solution for number 19. The only thing I noticed for 17 is that when you divide both sides of an inequality by a negative number, you have to flip the greater/less than sign.