Răspuns :
75:3=25 zambile are fiecare buchet la inceput
Cate zambile sunt in primul buchet? 25+15+4=44 zambile
25-4=21 in al doilea buchet
25-15=10 in al treilea buchet
Verificare: 44+21+10=75
a+b+c=75
a+15+4=b-4=c-15
a+19=b-4
a=b-4-19=b-23
b-4=c-15
c=b-4+15=b+11
b-23+b+b+11=75
3b=75+12
3b=87
b=29
a=6
c=40
a+15+4=b-4=c-15
a+19=b-4
a=b-4-19=b-23
b-4=c-15
c=b-4+15=b+11
b-23+b+b+11=75
3b=75+12
3b=87
b=29
a=6
c=40