1=2

let's put

a=1   b=1

a=b

ab=b^2                       (multiply by b)

ab-a^2 = b^2 - a^2 (substract a^2)

a(b-a)= (b+a)(b-a)   (factorize)

a = b+a                      divide by (b-a))

a= 2a                        (since a=b)

1= 2                           since(a=1)

Precisely. Because of that, whatever operation you do involving Infinite will always equal Infinite. Infinite is indeterminated because you can't reach it. So Infinite + - · / anything will equal Infinite, except multiplying it to 0 because that would mean negate it, plus the result is zero.

Think of this too: Infinite - Infinite =/= 0

I don't know, it is just that adding "0" to something doesn't increase or decrease anything. Thinking about differences is what a number has that the other don't. When it comes to infinite numbers well, I guess that it would come down to someone writing the numbers until just before that person's death and in his final moments adding that .0000000000000000000000001, I guess. Maybe infinte numbers are not supposed to have a difference compared to other numbers. I sincerely don't know. I am just here boosting post count.

b-a = 1-1 = 0 

You can't divide (b-a) because you can't divide by zero. Otherwise it would make that proof true and 1 would equal 2!

Jay is right. It's a fact.

http://www.basic-mathematics.com/converting-repeating-decimals-to-fractions.html

Look it up anywhere else if you do not trust this.

welll let's put a=1 ast the end problem solved

.999... =/= 1
It only approximately equals to it. It would be viewed the same way as a number approaches a limit, but never actually touching it. Calculus stuffs.

edit: "On the number line, there is no real number between 0.99999..... and 1. If there is no real number between any two numbers, then those two numbers are of the same value. There is no number higher than 0.9999... and lower than 1, therefore they are of the same value."

I should also say that for this part, it would be better to look at it as a line on a graph rather than a point on a number line.  

1- 0.9999.... = 1.0 -- That's FOUR ''9''(s)  TWO ''0'' and one ''1'' take in consideration that there's also two dots...

2- TWO + 0 = 2 so we have to split the 9999 in TWO

3- split 9999 in two, you get 99 and 99 -H-ALVE each and you get 49.5 and 49.5

4- 4+9 = 13 but there are TWO 4-9 so, 13 x 2 -- 5+5 = 10 = TEN take the ↑H↑ in ''halve'' and add it to TEN, you get THEN, so THEN

5- did you forgot the TWO dots? . and .? because they are 2 so 13 x 2/2 = 13

6- now we have only 13 and 1 (see line 1) since we haven't used it, if you take each individual number you get 1, 1 and --- 3

7- 1 and 1 are halves of 2 so we say each of them is HALF of something... ---HALF

8- if you pay attention you'll notice that the same letters in the word ALVE (see line 3) are used to form the word ---VALVE

9- the evidence is irrefutable, HALF LIFE 3 has been confirmed.

If you are familiar with the concept of taking an integral then it is quite similar to this argument. To find the area under a line (or any shape on a graph) you essentially have to take an infinite number of strips under the shape and add each of those areas together to find the overall area.

A lot of these arguments are based around infinity. Another example in mathematics is that if you have an equation of say:
(Infinity+1)/Infinity

What would be the answer?
The answer would still be 1 even though (9+1)/9 does not equal 1. This is because anything added or subtracted to infinity doesn't make a difference. Essentially when you have a REALLY large number such as infinity, all other numbers just don't have any effect on it. That is pretty much the argument.

What number is between 1 and 0.999999...(?)