Answer :

Answer:

7 - y

Step-by-step explanation:

The sum of -7 and y: -7 + y

The opposite of the sum: -(-7 + y) = 7 - y

7 - y
Step-by-step explanation:
The sum of -7 and y:-7+ y
The opposite of the sum: -(-7 + y) = 7 - y

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