Question

a+b+c=1345 ma puteti ajuta (dau coroana pt raspuns corect)
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Answer 1

a+b+c=1345
a+b=785|1
b+c=848|2 adunam relatia 1 cu relatia 2 si obtinem a+2b+c=1633
a+b+c=1345 le scadem
b=288 rezulta ca a=785-288=497
c=848-288=560

Answer 2

Răspuns:

a+b+c=1345

a+b=785 =》 a = 785-b

b+c=848 =》 c = 848-b

________

785-b+b+848-b=1345

1633-b=1345

b=1633-1345

b=288

a=785-288

a=497

c=848-288

c=560

Verificare:

497+288+560=1345