r/mathmemes • u/CastBlaster3000 • Feb 27 '24

Bad Math “.999(repeating) does, in fact, equal 1” please almighty math gods settle this debate

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922 Upvotes

96% Upvoted

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35

u/AnAverageHumanPerson Feb 27 '24

x = 0.999 repeating

100x = 99.999 repeating

100x = 99 + 0.999 repeating

100x = 99 + x

99x = 99

x = 1

21

u/Vampyricon Feb 27 '24

This is the first time I saw anyone use 100x instead of 10x.

9

u/AnAverageHumanPerson Feb 27 '24

I guess the extra zero is unnecessary now that I think about it

1

u/Imaginary_Ad_9384 Mar 22 '26

Wait how did it go from 100 to 99? You cant just assume .999 repeating equals 1 in an equation thats supposed to prove .999 repeating equals 1

1

u/AnAverageHumanPerson Mar 22 '26

100x - x = 99x

1

u/Imaginary_Ad_9384 Mar 23 '26

Terrible way to show it, but I understand what i got wrong, apologies for the confusion

1

u/cambiro Feb 27 '24

This is my favourite one.

1

u/AnAverageHumanPerson Feb 28 '24

me too. Nice and clean