Răspuns:
1. a+b+c=197423
a+b =113448
b+c=133633
197423-113448=83975 (c)
133633-83975=49658 (b)
113448-49568=63790 (a)
2. Rezolvăm prima paranteza:
755332-(c+135408)=245132
c+135408=755332-245132
c+135408=510200
c=510200-135408
c=374792
3. a-b=17890
b=9750+4886
b=14636
a-14636=17890
a=17890+14636
a=32526