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October 25, 2014

October 25, 2014

Posted by **Anonymous** on Tuesday, October 13, 2009 at 5:51pm.

I I will represent absolute value

I 2x-4 I -1= 11

Would the solutions be x=8 and x= -4?

* Algebra - Reiny, Tuesday, October 13, 2009 at 5:41pm

I just mentally tested x=8.

It did not work in your equation

take the -1 to the other side and follow the steps I just showed you in the previous problem

I did take the -1 to the other side. Here's exactly how I did it:

I 2x-4 I -1=11

added 1 to both sides

That came out to:

I 2x-4 I =12

I separated it into

2x-4=12 and 2x-4=-12

add 4 to both sides of each

2x=16 and 2x=-8

divide each by two

x=8 and x= -4

What part of my figuring is off?

- Algebra--Correction? -
**Reiny**, Tuesday, October 13, 2009 at 6:02pmI am sorry, you are right!!!!!

Three strikes, I guess I am out

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