Răspuns :
5ORI5=25LEI 5KGBANANE 50-25=25 25IMPARTIT LA 2=12.5 LEI 10 KG BANANE 37-7+3=27 3 KG PORTOCALE 37-27-7=17LEI 7 KG BANANE 12.5 6.25 1 KG BANANE 13:2=6.5 1KG PORTOCALE ASA CRED.
b= banane
c= portocale
5b+10c=50
7b+3c= 37
5b= 50-10c
b= (50-10c/)5
b=10-2c
7*(10-2c)+3c=37
70-14c+3c=37
70-37=14c-3c
33=11c
c=33:11
c=3 lei
5b+10c=50; c=3
5b+10*3=50
5b=50-30
5b=20
b=20:5
b=4 lei
c= portocale
5b+10c=50
7b+3c= 37
5b= 50-10c
b= (50-10c/)5
b=10-2c
7*(10-2c)+3c=37
70-14c+3c=37
70-37=14c-3c
33=11c
c=33:11
c=3 lei
5b+10c=50; c=3
5b+10*3=50
5b=50-30
5b=20
b=20:5
b=4 lei