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12 February, 11:33

Rianna thinks that if a=b and of c=d, then a+c=b+d. Is she correct?

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Answers (2)
  1. 12 February, 14:24
    0
    Hello

    rihanna had right, she is correct if a=b and of c=d, then a+c=b+d
  2. 12 February, 14:50
    0
    Substitute the A and C for B and D, so Yes she is correct.
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