Originally Posted by

**xxStrikeback** Just started university, and I haven't really done math in like a half year at least. Because of this I am struggling a bit on some of the algebra/pre calc review, really would appreciate some help.

Rewrite w/out abs. val. bars

1. |2x - 1| if x < 1/2

2. |2^x + 1|

Solve for x.

3. 1/x+a = 2/x-1 - 1/x-a, where a, b are constants

4. x + (2 times sqrt x) - 3 = 0

5. | (1 - 2x)/x | = 3x

6. x^3 - 5x > or = 4x^2

7. 2/x > or = 3

8. - | 2x + 3 | < -4

9. | 1 - 4x | - 7 < or = 2

Thanks.