Răspuns:
(x, y)=(100, 60)
Explicație pas cu pas:
[tex]x-y=40\ si\ \frac{x}{y}=\frac{5}{3}=>\ x=40+y\ si\ \frac{x}{y}=\frac{5}{3}\ =>y=60,\ x=40+60=100[/tex]
[tex]\left \{ {{100-60=40(merge)} \atop {100/60=5/3(merge)}} \right.[/tex] deci am verificat perechea (x, y)=(100, 60)
