Question

-4≤16X-1 totul supra 5 ≤3 calc A∩Z

Answer 1

Am atasat rezolvarea, sper ca am inteles bine enuntul

Answer 2

$-4\leq \dfrac{16x-1}{5} \leq 3 \Big|\cdot 5 \\ \\ -20 \leq 16x-1\leq 15 \Big|+1 \\ \\ -19 \leq 16x \leq 16 \Big|:16 \\ \\ -\dfrac{19}{16} \leq x \leq 1 \\ \\ \Rightarrow S = \Big\{-1,0,1\Big\}$