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This is a follow up for

Roman Numerals equation 1

With your creativity and lateral thinking and any ways you can think of (except the restrictions below), make the following equation correct moving only one letter somewhere

enter image description here

No using not equal to or arrow signs

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  • $\begingroup$ move one letter right? $\endgroup$ May 15, 2019 at 15:39
  • $\begingroup$ Yes indeed. Sorry about that. $\endgroup$
    – DrD
    May 15, 2019 at 15:41

2 Answers 2

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Possible answer

Move the C (surrounding the minus sign on the right) over to the left, between the I and M as shown:
enter image description here
Then, we have 1cm = (XI-I)mm = 10mm, which is true!

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  • 1
    $\begingroup$ The question asked for lateral thinking, not overlateral thinking... :P Very clever! $\endgroup$
    – EKons
    May 15, 2019 at 20:10
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Here's another answer.

Move the I after the X to the right of the E. This gives you
I M = (X EII) MM
or 1 m = 10E2 mm.
Put it another way, 1 m = 10*102 mm=1000 mm, which is correct.

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  • $\begingroup$ That is very lateral thinking and clever $\endgroup$
    – DrD
    May 18, 2019 at 19:10

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