.99999 repeating = 1

x= .999 repeating
10x = 9.999 repeating
10x-x = 9.999 repeating - .999 repeating
9x= 9
x=1

0.999999999r=1.000000000r
0.999999998r=0.999999999r
0.999999989r=0.999999990r
0.999999899r=0.999999900r
0.999998999r=0.999999000r
0.999989999r=0.999990000r
0.999899999r=0.999900000r
0.998999999r=0.999000000r
0.989999999r=0.990000000r

BUT THE PROBLEM OCCURS CAUSE
1.000r = 0.999r + (1.000r-0.999r)
and 1.000r = 0.999r + (1.000r-0.999r) + (1.000r-0.999r) etc, onto infinity.

ALL NUMBERS ON THE REAL NUMBER LINE WELL END UP EQUAL TO EACH OTHER! SINCE EVERY REAL NUMBER IS EQUAL TO IT'S
INFINITELY CLOSE NEXT NUMBER, ETC.
I can't explain this well as I am not a mathematician, but real number line is epic fail!