3 quite good problems (mostly algebra)

Hello everybody!

I hope you feel for some algebra!:D

** Problem 1 **(I have "solved" this one, "solution" below)

**Spoiler! - UPDATED**

This is how I think

First we put as a fraction

Then we multiply with to get a common denominator.

Ok, now we are close to a more simpler way to put this problem. (Put everything in the same fraction.

is zero. we are left with

**End Spoiler**

* A second opinion on this problem and it's "solution" is always welcome.*

Alright, **problem 2**. Now we got to have a clear mind and a sharp eye to solve this one...

**Solved!**

First we work some on the first fraction, to make it more easy to work with. (I'll go more into detail later)

**Problem 3**

**Solved!**