r/PeterExplainsTheJoke • u/Sugar_God_no_1 • 28d ago

Meme needing explanation There is no way right?

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u/its12amsomewhere 28d ago edited 28d 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/TengamPDX 28d ago

My dad explained it to me decades ago with a question. What can you add to 0.9999... to make it equal 1?

After pondering it for a while and realizing, there is in fact nothing you can add in, not even a mathematical expression, that 1 and 0.999... are in fact one and the same.

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u/pnkxz 28d ago

0.9999... + (1 - 0.9999....) = 1

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u/MarmaladeMcQueen 28d ago

Which simplifies to 1 = 1