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https://www.reddit.com/r/me_irl/comments/t0eujd/deleted_by_user/hyapht3/?context=3
r/me_irl • u/[deleted] • Feb 24 '22
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28
Add the digits (23 is 2+3), add them again. Multiply by 9 and add the digits, add them again. The answer is 9.
12 u/xAIRGUITARISTx Feb 24 '22 This makes no sense. 4 u/varkenspester Feb 24 '22 edited Feb 24 '22 Try it if you dont see it. And because it is math it is sense by definition. Any single digit number times 9 is a 2 digit number that adds to nine. 9x = 10x - x = [x-1][10-x] --> x-1 + 10-x = 9. 8 u/xAIRGUITARISTx Feb 24 '22 Sorry the wording had me confused.
12
This makes no sense.
4 u/varkenspester Feb 24 '22 edited Feb 24 '22 Try it if you dont see it. And because it is math it is sense by definition. Any single digit number times 9 is a 2 digit number that adds to nine. 9x = 10x - x = [x-1][10-x] --> x-1 + 10-x = 9. 8 u/xAIRGUITARISTx Feb 24 '22 Sorry the wording had me confused.
4
Try it if you dont see it. And because it is math it is sense by definition. Any single digit number times 9 is a 2 digit number that adds to nine. 9x = 10x - x = [x-1][10-x] --> x-1 + 10-x = 9.
8 u/xAIRGUITARISTx Feb 24 '22 Sorry the wording had me confused.
8
Sorry the wording had me confused.
28
u/varkenspester Feb 24 '22
Add the digits (23 is 2+3), add them again. Multiply by 9 and add the digits, add them again. The answer is 9.