I am curious how to proceed with this problem:

I know I must remove the Absolute value, but how?

Thanks in advance.

Printable View

- Dec 9th 2008, 09:38 AMZineferAbsolute Values
I am curious how to proceed with this problem:

I know I must remove the Absolute value, but how?

Thanks in advance. - Dec 9th 2008, 09:49 AMmasters
- Dec 9th 2008, 10:02 AMZinefer

Would that be the answer?

Again, thanks for your time. - Dec 9th 2008, 10:17 AMmasters
Not exactly, go bact to this step:

You will want to solve for x.

Multiply each term by 28 to remove the fractions. Then subtract 7 from both sides and the middle.

Code:

-21 < 20x + 7 < 21

-7 - 7 -7

---------------------

-28 < 20x < 14

- Dec 9th 2008, 10:33 AMZinefer
Thanks alot. The answer is:

- Dec 9th 2008, 11:52 AMmasters