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28 May, 14:18

12r + 5h - 7u + 11r + 9h - 4r

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Answers (2)
  1. 28 May, 14:43
    0
    Answer:17r+14h-7u
  2. 28 May, 15:09
    0
    Step-by-step explanation:

    Add / Subtract like components.

    12r + 11r=23r

    23r-4r=19r

    5h+9h=14h

    7u stands as it is because it does not have like component. The answer should read:

    19r+14h-7u
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