Răspunsuri

  • Utilizator Brainly
2014-07-31T19:24:55+03:00
10a+10b+10c=2530 /:10 
a+b+c=253

a+b=196
196+c=253
c=253-196
c=57

a+c=177
177+b=253
b=253-177
b=76

a+57=177
a=177-57
a=120

Verificare : 120+76+57=253