Question

How does 2=1?

Answer 1

a=b.
a^2=ab.
a^2+a^2=a^2+ab.
2a^2=a^2+ab.
2a^2-2ab=a^2+ab-2ab.
2a^2-2ab=a^2-ab.
2(a^2-ab)=1(a^2-ab).
(a^2-ab)1=2.

Answer 2

divide by 0. if a = b, then a - b = 0

Answer 3

You can't divide by 0...... Ever...

Answer 4

thanks @Diego98512

Answer 5

Welcome. :D