Hi!

I'm having trouble connecting this light switch. I connected the white wire to the bunch in the box and capped the green wire (ground) since the other ground wires were connected to the back of the box with some switches.

when I took off my old light switch there were three black wires, Two connected to the screws on the side and one connected through the back. I'm not quite sure how to deal with all these three wires, any help would be greatly appreciated!