Question

remove 1 from 9 to make it 10.​

Answer 1

HEY IT IS SIMPLE

IX -I

X

Answer 2

Hello!!

$\mathfrak\blue{Answer}$
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➡️It is possible if you are using Roman Numerals.

9 = IX

10 = X

11 = XI

➡️IX-I=X

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Thanks!!