Question

xy=2x+2y qual a resposta

Answer 1

Xy=2x+2y
xy-2x=2x+2y-2x
xy+(-2)x=2y
(y-2)x=2y
x= $\frac{(y-2)x}{y-2} = \frac{2y}{y-2}$
x= $\frac{2y}{y-2}$
x= $\frac{2y}{y-2} , y \neq 2$

Bons estudos!!