Question

5x divizibil cu 2
x= 0,2,4,6,8,30,52,54,56,58

Answer 1

Răspuns: $\bf \red{\underline{x \in\{0,2,4,6,8\}}}$

Explicație pas cu pas:

$\bf \overline{5x}~~\vdots~2 \implies \red{\underline{x \in\{0,2,4,6,8\}}}\implies \overline{5x}\in\{50,52,54,56,58\}$