Answer
c) x+(-y)
Work Step by Step
Subtracting a number is the same as adding its opposite. Therefore, it is true that: $x-y=x+(-y)$.
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.