# Algebra Myth

• October 18th 2009, 03:30 PM
steveebee
Algebra Myth
my request is simple, explain the image i present to you
• October 18th 2009, 03:37 PM
Defunkt
Quote:

Originally Posted by steveebee
my request is simple, explain the image i present to you

From $(a+b)(a-b) = b(a-b) \Rightarrow a+b = b$ you divide by $(a-b)$, but $a=b \Rightarrow a-b = 0$ thus you divided by zero.

just to clarify: you can't divide by zero.
• October 18th 2009, 06:56 PM
pacman
Defunkt, you found the loophole in that falacious argument neatly, wow!..... (Bow).

steveebee, more here Classic Fallacies