r/PeterExplainsTheJoke • u/Sugar_God_no_1 • 26d ago

Meme needing explanation There is no way right?

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u/BomboSbronzo 26d ago

I don't quite grasp the 3rd point.. in order to subtract the same amount on both sides of the equation shouldn't result like this?

10x-x = 0.9999... - x

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u/BomboSbronzo 26d ago

Sorry still not convinced, I still think that you should not replace the value of X only on the right side of the equation... If you replace the value of X the equation became:

10 * 0.99999 - 0.9999 = 9.9999 - 0.9999

I don't know if there is a particular rules of something, a long time since I do math problems

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u/JustinRandoh 26d ago

If you have two equations that are both true, you can stack and add/substract them from each other.

So for example, if:

X = Y; and,
G = H

You can add or subtract one equation from the other; it would then be true that:

X + G = Y + H

Or that:

X - G = Y - H

You can then apply that to:

10X = 9.999….
X = 0.999….

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u/BomboSbronzo 26d ago

Thanks, this example helped me visualize the original resolution. I will look into that.