Question

Daca x supra y este egal cu 7 supra 2 calculati 3x+5y supra 2x+y

Answer 1

$\frac{x}{y} = \frac{7}{2} \\ \frac{3x + 5y}{2x + y} = \frac{3 \times 7 + 5 \times 2}{2 \times 7 + 2} = \frac{31}{16}$