Răspuns :
a+b+c=85
a=b-7
c=b+11
b-7+b+b+11=85
3b=85+7-11
b=81:3
b=27 kg in al2lea sac
a=27-7=20 kg in primul sac
c=27+11=38 kg in al3lea sac
a=b-7
c=b+11
b-7+b+b+11=85
3b=85+7-11
b=81:3
b=27 kg in al2lea sac
a=27-7=20 kg in primul sac
c=27+11=38 kg in al3lea sac
A+B+C=85
A=B-7
B=A+7
C=A+11=7
A=?
B=?
C=?
11+7+7=25
85-25=60
60:3=20
A=20
B=27
C=38
V:20+27+38=85
A=B-7
B=A+7
C=A+11=7
A=?
B=?
C=?
11+7+7=25
85-25=60
60:3=20
A=20
B=27
C=38
V:20+27+38=85