If you triple four and subtract two each day how many days until you have zero

Here is my answer

if you tripe 4:

4 x 3 = 12 - 2 = 10 - 2 = 8 - 2 = 6 - 2 = 4 - 2 - 2 = 0

(the darker numbers are your days)

so your answer is 6 days

because you did 4 x 3 and that got you to 12 so you subtract 12 and 2 and you get 10 and you keep subtracting

how many bold number are there 6 so it is 6 days