Can I merge two views into a third one I'm new to views and was wondering how I can accomplish this: 

I have two views one that takes receivable invoices and displays them and then totals them at the end of the table using View Aggregate Plus. Another view that grabs invoices that are payable and once again totals these together. 

What I'm looking for is a way to take the total of these two views and then display it in a third view called balance which will take the total of receivable invoices and subtract the total of payable invoices. 

Is there a way to do this?
Here is the way to render multiple views on a single template file. 

you need to make use of views_embed_view
Using this function, you can embed Views and even dynamically pass them filter arguments. - See more at: http://www.webomelette.com/drupal-embed-view-template-tpl

you can use this function multiple time to get your both views rendered and then do your operations on variables available from them [you need to figure out this at-least], here is the help