6 x 9 + 6 + 9 = 69Coincidence? I think not
@deesapoetra
ab = ax10 + bax10 = a x 9 + a
@Acer i know it's a cool unique formula. But did you get the joke tho?
@deesapoetraNice..
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@deesapoetra
ab = ax10 + b
ax10 = a x 9 + a