Question

Daca A+B+C=625 B-A=2 B-C=12,afla valorile lui A B C

Answer 1

A+B+C=625
B-A=2=> B=A+2
B-C=12 => C=B-12=> C=A+2-12 => C=A-10
Inlocuim B si C in formula A+B+C=625 => A+A+2+A-10=625 => 3A-8=625 => 3A=625+8 => A=633:3 => A=211

B= A+2 => B=211+2=> B=213
C=B-12=> C=213-12 => C=201