Respuesta :
[tex] N° ⇒ x \\ \frac{3}{5} x + x = 80 \\ \frac{3}{5} x + \frac{5}{5} x = 80 \\ \frac{8}{5} x = 80 \\ x = 80 \div \frac{8}{5} \\ x = 80 \times \frac{5}{8} \\ x = 50[/tex]
[tex] N° ⇒ x \\ \frac{3}{5} x + x = 80 \\ \frac{3}{5} x + \frac{5}{5} x = 80 \\ \frac{8}{5} x = 80 \\ x = 80 \div \frac{8}{5} \\ x = 80 \times \frac{5}{8} \\ x = 50[/tex]