Question

2/x=x-1/x+2...qual o valor de x?

Answer 1

 x/x+1=x+2/x 
x²+3x+2=x² 
3x+2=0 
3x=-2 
x=-2/3

Answer 2

Só multiplica,

$\frac{2}{x} = \frac{x-1}{x+2} \\ \\ 2(x+2) = x(x-1) \\ \\ 2x + 4 = x^{2} - x \\ \\ x^{2} - 3x - 4 = 0 \\ \\ (x - 4)( x +1 ) = 0 \\ \\ \boxed{x_{1} = 4} \\ \\ \boxed{x_{2} = -1}$

Salu2 :).