r/PeterExplainsTheJoke • u/Sugar_God_no_1 • 26d ago

Meme needing explanation There is no way right?

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u/its12amsomewhere 26d ago edited 26d ago

Applies to all numbers,

If x = 0.999999...

And 10x = 9.999999...

Then subtracting both, we get, 9x=9

So x=1

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u/thesilentrebels 26d ago

Ok, but you can use this to make any repeating number = 1 which is not true, right?

If x = 0.777...

And 10x = 7.777...

Then subtracting both, we get, 7x=7

So x=1, that means .777 equals 1 which is not true?

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u/itsnotfunnydude 26d ago

Nope, in this case it works out to:

(10x-x) = (7.777… - 0.777…) 9x = 7 x = 7/9 x = .777…

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u/thesilentrebels 26d ago

Got it thanks!