Răspuns :
Consideram ca se vand numai biciclete
35*2=70 roti
raman 10 roti, adica 10 sunt triciclete
biciclete = 35-10=25
35*2=70 roti
raman 10 roti, adica 10 sunt triciclete
biciclete = 35-10=25
b+t=35=>b=35-t
2b+3t=80
2(35-t)+3t=80
70-2t+3t=80
t=80-70
t=10
b=25
2b+3t=80
2(35-t)+3t=80
70-2t+3t=80
t=80-70
t=10
b=25