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zaharov [31]
4 years ago
12

Please help with this

Mathematics
1 answer:
sergiy2304 [10]4 years ago
5 0

a. r + (-s) = r - s

b. r - (-s) = r + s

c. -r + (-s) = -r - s

d. -r - (-s) = -r + s

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Answer:

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Step-by-step explanation:

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