test my Ti

[Exodus]

No, you didn't triple it, you actually did it right in this matter. The mistake was that you added the previous amount to that you got from your doubling.

You:
1.) 1x2=2+1=3
2.) 3x2=6+3=9 ect.

the right way:
1.) 1x2=2
2.) 2x2=4 ect.

which is the same as tripling it

n + 2n = 3n