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27 July, 23:28

Which equation is a related equation

x + 9 = 28

A. x = 28 - 9

B. x - 9 = 28

C. 9 - x = 28

D. x = 9 - 28

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Answers (1)
  1. 28 July, 00:59
    0
    D, because 28-9=21 and 21=x
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