Question

prove that 19 - 1 = 20. Those who give inappropriate answers will be reported and u will be cancelled. Those who know the answer can reply to this.
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Answer 1

Heya! There goes your answer:

19 = XIX

Take away the I in the middle and you get XX = 20

I is taken because it is already given in the LHS : 19-I.

Answer 2

XIX-I=XX

=20

please mark me as brainliest