Answer
$ 0$
Work Step by Step
RECALL:
$a-b=a+(-b)$
Use the definition of subtraction above to obtain:
$-65-(-65)
\\= -65+65
\\= 0$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.