Răspuns :
a+b+c=912
a+b=515
b+c=645
515+c=912 /-
c=397
b+397=645 /-
b=248
a+248=515 /-
a= 267
Răspuns:
a+b+c=912
a+b=515
b+c=645
515+c=912
c=912-515
c=397
b=645-397
b=248
a=515-248
a=267
a+b+c=912
a+b=515
b+c=645
515+c=912 /-
c=397
b+397=645 /-
b=248
a+248=515 /-
a= 267
Răspuns:
a+b+c=912
a+b=515
b+c=645
515+c=912
c=912-515
c=397
b=645-397
b=248
a=515-248
a=267