Have you noticed multiple duplicated Google+ pages appearing in your Google+ Dashboard? This occurred or is still occurring when Google+ Pages migrated across to the Google+ Local platform ( now called Google My Business ) and will still occur if you convert your Google+ Brand page into a Local page.
Dealing with Duplicate Google+ Pages
Deleting these is very simple, but people get concerned because of all the Warnings Google gives before deleting, leaving them thinking twice.
The Only thing to make sure of, is that you are in the correct page setting before hitting delete.
Duplicate Page Setting
Open the duplicate Google+ Page you want to delete >> hover over Logo top right drop down menu.
Click on the >> Settings Link
This way you know you are in the Page you want to delete and are in that pages setting.
The Logo should also be empty unlike your main one.
Scroll to bottom of the page and hit DELETE PAGE
A pop up will appear asking to confirm Delete Page selection >> select Delete Page
The next bit is where people get scared off, with all the warning signs.
You will need to >> tick all the boxes
One last glance at the logo to make sure it was the empty duplicated one >> Then hit delete
Job Done !
Repeat the process on the next duplicate Google+ page.