Solved
I see that the last page is the amount that will be refunded to me which I selected to be mailed to me by a paper check. I just want to be sure that all I need to send in is the 2016 Form 1040-V payment voucher with a check made payable to the "United States Treasury" with my social security number written on it
The voucher is the only thing you mail with your check to pay your federal taxes due.
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