Question

cum se rezolva asta?

Answer 1

5×X-23>_ 22/+23
5×X>_45/:5
X>_9=>X€{9,10,11...}

Answer 2

$5 \cdot x - 23 \geq 22 \iff \\ 5 \cdot x \geq 22 + 23 \iff \\ 5 \cdot x \geq 45~~~| : 5 \iff \\ x \geq 9 \Rightarrow x \in [9;+ \infty)$