Personal Information
Organization / Workplace
Mexico City, Mexico
Occupation
Tecnico profecional en bicicletas
About
Si sabes hallar el problema es que tenemos halgo en comun:
SEA X=Y entonces:
x² = xy
x²-y² =xy -y²
(x+y)(x-y)=y(x-y)
X+y=y
2y=y
2=1