Question

Teorema de Tales- Calcule o valor de x:

Answer 1

$\frac{x+5}{x} = \frac{x+2}{x-2} \\ (x+5)(x-2)=(x+2)x \\ x^2-2x+5x-10=x^2+2x \\ x^2-x^2-2x-2x+5x-10=0 \\ 5x-4x-10=0 \\ x-10=0 \\ x=10$