Which of the following expressions is correct? -(-21) = 21 -(21) = 21 -(-21) = -21 (-21) = 21

asked May 26, 2020 10.5k views

5 votes

Which of the following expressions is correct?

-(-21) = 21
-(21) = 21
-(-21) = -21
(-21) = 21

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2 votes

Answer:

the answer is A

Explanation:

Tiernan answered May 28, 2020

5.6k points

2 votes

Answer:

Step-by-step explanation:neg X negative = positive

David Clews answered May 30, 2020

5.9k points

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