I was watching a さきちゃんvlog video but i noticed the subtitles and what she was saying were different. どうやってお金を出せばいいでしょうか is what she says but the subtitles have changed 出せば to 払えば. In jisho 払う means to pay so i understand why the subtitles may say this but I don’t understand how 出す works in this case. Sorry if the post comes out weird this is my first time 
It would probably be best to be able to check the video, so can you link it?
Thanks
出す can be used generally any time you take something out of somewhere and move it to a location outside of where it originally was.
In this case, it’s most natural to translate this as “pay” but it has more of an emphasis on the act of producing the coins to pay with/taking them out from somewhere and putting them elsewhere, which makes sense since she actually talks about which coins add up to the total.