How to Prove 2=1 ? July 15, 2020 0 Lets, x = y …(1) Multiply by 2 both sides,2x = 2y …(2) Subtracting eq. (1) from (2),2x – x = 2y -y Rearranging them,2x – 2y = x – y Dividing both sides by (x-y)2(x-y)/(x-y) = (x-y)/(x-y) Hence,2 = 1 Proved. Spread the knowledge..!! algebramath magic