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Bounty Ended with 100 reputation awarded by Amruth A
added 9 characters in body; added 4 characters in body; edited body
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Olba12
Olba12
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$$9 - 1 = 10 = 11 - 1,$$ thus

$$29 - 1 = 20 + 9 - 1 =\\ = 20 + 11 - 1 = 31 - 1 = 30.$$

Edit

Or just using that $9-1 = 10$

$$ 29 - 1 = 20 + 9-1 = 20 + 10 = 30.$$

$$9 - 1 = 10 = 11 - 1,$$ thus

$$29 - 1 = 20 + 9 - 1 =\\ = 20 + 11 - 1 = 31 - 1 = 30.$$

$$9 - 1 = 10 = 11 - 1,$$ thus

$$29 - 1 = 20 + 9 - 1 =\\ = 20 + 11 - 1 = 31 - 1 = 30.$$

Edit

Or just using that $9-1 = 10$

$$ 29 - 1 = 20 + 9-1 = 20 + 10 = 30.$$

added 9 characters in body; added 4 characters in body; edited body
Source Link
Olba12
Olba12
  • 706
  • 4
  • 8

9 - 1 = 10 = 11 - 1, thus$$9 - 1 = 10 = 11 - 1,$$ thus

29 - 1 = 20 + 9 - 1 = 20 + 11 - 1 = 31 - 1 = 30.$$29 - 1 = 20 + 9 - 1 =\\ = 20 + 11 - 1 = 31 - 1 = 30.$$

9 - 1 = 10 = 11 - 1, thus

29 - 1 = 20 + 9 - 1 = 20 + 11 - 1 = 31 - 1 = 30.

$$9 - 1 = 10 = 11 - 1,$$ thus

$$29 - 1 = 20 + 9 - 1 =\\ = 20 + 11 - 1 = 31 - 1 = 30.$$

Source Link
Olba12
Olba12
  • 706
  • 4
  • 8

9 - 1 = 10 = 11 - 1, thus

29 - 1 = 20 + 9 - 1 = 20 + 11 - 1 = 31 - 1 = 30.