Posted by **Harper** on Monday, January 26, 2009 at 4:26pm.

4a-2 (less than or equal to) a + 1 (less than or equal to) 3a + 4

I'm assuming I should put this on a line, like I did with some other problems on my worksheet, right? But I have no idea how I would show 4a-2 on a line! I have no idea how to do this.

Thank you so much!

- Read my question, and then look at this message for my results! -
**Harper**, Monday, January 26, 2009 at 4:41pm
I think I understand how to do this... here's my work.

4a - 2 < a + 1 < 3a + 4

I separated them into two pieces:

4a-2 < a + 1 and a + 1 < 3a + 4

Then, I added two to each side of the first one, and took away 1 from each side of the second one.

4a < a + 3 and a < 3a + 3

I took away took away a from each side of the first one and 3a from each side of the second one.

3a < 3 and -2a + 3

Then, I will put it on a line. Does my work look right?

- Algebra -
**bobpursley**, Monday, January 26, 2009 at 4:50pm
4a-2<a+1

3a<3 or a<1

a+1<3a+4

-3<2a

-3/2 < a

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