Replying to Math Help PLZ

Ok this is quite a bit I prolly even put it into 2 dif. posts. This is a test, so try and make sure you get it right.

4/(x-1)-2/(x+3)

x/(x^2+6x+9) + 3/(x^2-9)

5/(y-3) - 7/(3-y)

x/(x+2) - 5x/(x^2-4)

If you help me I will give you a hug...Seriously though, I convinced my teacher to let the test be taken home, and this is the last one, so I need a good grade...and if you help me with all of them (still got like 4 more after this) I might send u money