Question

Решите пропорции!! Ж и з

Answer 1

Ж)
$frac{2}{x} = frac{y}6} \ \ frac{y}6} = frac{2}{x} \ \ x = frac{12}{y} \ \ y = frac{12}{x}$


З) 
$frac{3}{x} = frac{x}{12} \ \ x = frac{36}{x} \ \ frac{x^2}{x} - frac{36}{x} = frac{x^2-36}{x} = 0 \ \ x_{1} = sqrt{36} \ \ x_{2} = - sqrt{36} \ \ x_{1} = 6 \ x_{2} = -6$