Question

daca 9 lazi cu portocale si 3 lazi cu lamai cantaresc in total 63 de kilograme ,iar 3 lazi de portocale si 4 lazi de lmai cantaresc 30 kilograme ,afla cat cantaresc 5 lazi cu lamai

Answer 1

3p+4l=30/*3
9p+12l=90
(9p+12l)-(9p+3l)=90-63=27
9l=27
l=27 impartit la 9
l=3
l*5=3*5=15