both devices use different operating systems, which do not work in the same way, that doesn't mean that you can't sync anything but first we need to know what it is you want to sync before we can find out if it is possible or not and point you to some guides to accomplish what your after.
not really sure what you mean by yahoo, is that your email?
far as i'm aware your yahoo account will be the same regardless of what device you log into it from so your emails should be there on both devices, so still not sure exactly what your trying to sync. sorry.
Yes, yahoo is my email. When I go to delete some email on my tablet, it doesn't delete it on my computer, and vice versa. I also wasn't able to get to this thread via my tablet, had to go to my computer.
I know there should be a way to sync the two emails together, I just cant figure out how.
PLEASE LOGIN TO YOUR YAHOO ACCOUNT AND CLICK ON THE "gear" on the top right, THAT GIVES YOU THE MENU AND CLICK ON
"mail options". CLICK ON THE "general" tab WHICH IT OPENS UP TO BY DEFAULT. SCROLL ALL THE WAY TO THE BOTTOM. YOU WILL SEE "turn on ssl" CHECK THE BOX TO THE RIGHT OF IT. ONCE YOU SELECT IT CLICK "ok" AND PLEASE MAKE SURE TO CLICK ON THE YELLOW "save" BUTTON TOWARDS THE TOP.
Try to sync using cable, a USB connection between the Nexus 7 and your computer works fastest when the devices are physically connected. You make this connection happen by using the USB cable that comes with the tablet.