Răspunsuri

2014-07-26T16:06:48+03:00
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
1 4 1
2014-07-26T16:15:01+03:00
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
1 1 1