Question

aflati numerele x si y, stiind ca x supra 3 = y supra 5 si ca 2x+3y=84 Va rog urgent

Answer 1

$\frac{x}{3}$=$\frac{y}{5}$
inmultim in diagonala
5x=3y
inlocuim
2x+5x=84
7x=84
x=12
3y=84-24
3y=60
y=20