Question

Suma a doua numere este 312 iar daca se imparte unul la celalat se obtine catul 2 si restul 12.

Aflati numarul.

Answer 1

a+b=312
a:b=2 r 12
a=2b+12
2b+12+b=312
3b=300
b=100
a=2*100+12=200+12=212

Answer 2

$a+b=312 \\ a:b=2 \ rest \ 12 \to \boxed{a=2b+12} \\ ***********************\\ 2b+12+b=312 \\ 3b+12=312\\3b=312-12\\3b=300\\\underline{\bold{b=100}} \\ \\ a+100=312\\\underline{\bold{a=212}}$