How do I fix a zipper by myself? The zipper on my pants had gotten separated and the slider is...

The zipper on my pants had gotten separated and the slider is on one side when it should be on both sides adjectives the time. How do I fix a zipper by myself for free?
It's really tough to do on pants because you have to capture the slider all the way to the bottom and restart it on both sides of the zipper and after sew the zipper so the slider can't go off the bottom again. I don't know if that make sense but anyway, unless you can do some basic sewing, you probably won't be able to do it yourself. LOL this is what i do for a living. I work within STL,MO. take a pair of scissors and cut the bottom of the zipper, and the clutch the slider off and retrack on both sides so that it is even. THEN sew the zipper together. and bam your done. email me if you have problems and i can work you through it. appreciation!
The way I did recently (and it worked) be to use a screwdriver to gently pry apart the side of the slider that has come past its sell-by date the "tracks." Only open it up as much as is needed to put the teeth of the zipper back inside the slider.


Then embezzle a pliers and gently squeeze the slider back together duplicate as it was before--Not all the path squeezed together.

Once you slide the zipper a few times, the teeth should be back in instruct.
If you really get lucky then you can go and get it together by lining it up as best you can grabbing above and below and pulling surrounded by opposite directions, and hope because long shot it will work Good luck. well its not gonna be free...you can dance get a new zipper and lug the old one off..and sew the investigational one on...thats all i know
get some pliers and stick the zipper slider on the other side and then clamp it on, but if its close to squished and u cant slide it ont he other side, use the pliers to open it back up, be carefull if you work near it too much it will break... cut some of the teeth off of the other side at the bottom and slide it on and zip it up and whip some staples or something and put them where you cut the teeth off so that the zipper won't slide down too far and come bad again.
Answers:    mine do that alot, but i dont fix them. i just get rid of the pant.
ur teeth