Question

determine x e y, sendo r, s e t retas paralelas​

Answer 1

Resposta:

Explicação passo-a-passo:

$\frac{12}{x}=\frac{2+(x-7)}{x-7}=>\frac{12}{x}=\frac{3}{1}=> 3x=12=>x=\frac{12}{3}=> x=4\\\\\frac{12}{4}=\frac{20}{y}=>12y=80=>y=\frac{80}{12}=>y=\frac{20}{3}$