Question

rezolavati solutiile naturale ale inecuatiilor
3x<9

Answer 1

[tex]3x\ \textless \ 9\Rightarrow x\ \textless \ \frac{9}{3}\Rightarrow\\ x\ \textless \ 3\text{ si } x\in\mathbb{N}\Rightarrow x\in\{0,1,2\}\\[/tex]

Answer 2

$3x\ \textless \ 9 \\ x\ \textless \ 9:3 \\ x\ \textless \ 3 \\ x~\in\mathbb{N} \\ x~ \in\{0,1,2\}$