## anonymous 5 years ago I need help on rational expression equations : 1=(1/2b)-(b+1/b)

1. anonymous

To solve rational equations, all you have to do is get rid of the denominators (by multiplying both sides by them), solve as you would a normal equation, and then make sure your solutions wouldn't make the original denominators equal zero. In this case, then, your first step should be to multiply both sides by $$b$$, as the two fractions ($$\frac{1}{2b}$$ and $$\frac{b+1}{b}$$) have the denominator $$b$$.

2. anonymous

See if you can work it out from there.

3. anonymous

ok soo what we can get here is the following: 1 = (1/2b) - (b+1)/b 1 = (1/2b) - (2/2)(b+1)/b so we get 1 = (1/2b) - (2b +2)/2b 1 = (1 - 2b -2) / 2b so we get 1=-2b-1/2b 2b = -2b -1 2b+2b = -1 4b = -1 sp b = -1/4

4. anonymous

that one was a bit confusing. :/ i like don't the middle part D:

5. anonymous

well you are just trying to simplify by using common denominators because they are fractions. right? its like adding (1/2) + (1/4)