Răspuns :
a+b+c=448
b=a+19=>a=b-19
b=c-38=>c=b+38
b-19+b+b+38=448
3b=448+19-38
b=429:3
b=143
a=143-19=124
c=143+38=181
b=a+19=>a=b-19
b=c-38=>c=b+38
b-19+b+b+38=448
3b=448+19-38
b=429:3
b=143
a=143-19=124
c=143+38=181
a+b+c=448
a=b-19
c=b+38
b-19+b+b+38=448
3b+19=448
3b=429
b=143
a=143-19=124
c=143+38=181
a=b-19
c=b+38
b-19+b+b+38=448
3b+19=448
3b=429
b=143
a=143-19=124
c=143+38=181