addie07182 addie07182
  • 20-10-2020
  • Mathematics
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Please help with this

Please help with this class=

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NatKS
NatKS NatKS
  • 20-10-2020

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

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

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

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

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