Two equals one

Puzzles, situation puzzles and recreational mathematics.

situation puzzles and recreational mathematics. Neuron juice
 
 
 

Neuron juice.

The important thing is not to stop questioning. (Albert Einstein.)

  
Dos es igual a uno

Is 2 = 1 ?

An impossible equation. or not?
If a = 1 and b = 1 then a = b .
Multiplying both sides of the equation for b , we have :
ab = b2
Subtracting both sides of the equality a2 are:
ab - a2 = b2 - a2
factoring :
to ( b - a) = (a + b ) ( b - a)
And simplifying the term ( b - a) :
a = a + b
Since a = b , then the expression is equivalent to :
a = a + a
Thus:
a = the 2nd
So:
1 = 2

 

Is correct this show ?