Eff this, philly mike is an idi0t, ask zdunklee.

[Philly Mike]

you can't round an infinite decimal and still have the same number you started with.

exactly, which is why .999... is a separate number, because the only way to make it 1 is to round up to the nearest finite number.

oh and by the way, i was looking back at this whole argument and there is something that doesn't make sense in your original argument with this.

x = 0.9999...
10x = 9.9999...
10x - x = 9.9999... - 0.9999...
9x = 9
x = 1.

this is incorrect
this is how it should be

x = 0.9999...
10x = 9.9999...
10x - x = 9.9999... - 0.9999...
9x = 8.9999...
x = 0.9999...

so even your own original statement shows no proof.