Răspuns :
a+b+c=74
b-11=a
b=a+11
c=3b= 3(a+11)=3a+33
a+a+11+3a+33=74
5a+44=74
5a=74-44
5a=30
a=6
b=6+11=17
c=6*3+33=18+33= 51
b-11=a
b=a+11
c=3b= 3(a+11)=3a+33
a+a+11+3a+33=74
5a+44=74
5a=74-44
5a=30
a=6
b=6+11=17
c=6*3+33=18+33= 51
a+b+c=74
b=a+11
c=3*a+33
inlocuim
a+a+11+3*a+33=74
a+a+11+3*a+33=74
5a+44=74
5a=74-44
5a=30
a=30:5
a=6
b=a+11 =6+11=17
c=3*a+33=3*6+33=18+33=51
b=a+11
c=3*a+33
inlocuim
a+a+11+3*a+33=74
a+a+11+3*a+33=74
5a+44=74
5a=74-44
5a=30
a=30:5
a=6
b=a+11 =6+11=17
c=3*a+33=3*6+33=18+33=51