Question

3.Cel mai mic număr natural de forma 9x6y dovizibil cu 3, cu x egal taiat y este:​

Answer 1

$\overline{9x6y} \in N, \ \overline{9x6y} \ \vdots \ 3, \ x \neq y \\ \Rightarrow \ (9+x+6+y) \ \vdots \ 3 \\ \Rigtharrow \ (15+x+y) \ \vdots \ 3 \\ \Rigtharrow x+y=3 \\ \Rightarrow \boxed{x=0; \ y=3} \\ \bold{ 9063 \ \vdots \ 3}$