Question

rezolvati exercițiul acesta

Answer 1

$\rm -3\ \textless \ \frac{4x+7}{3}\le5~|*3 \\ \\ -9\ \textless \ 4x+7\le15~|-7 \\ \\ -16\ \textless \ 4x\le8~|:4 \\ \\ -4\ \textless \ x\le2 \\ \\ x\in \mathbb{Z} \Rightarrow \boxed{A= \{-3,-2,-1,0,1,2\}}$

Answer 2

Am atasat rezolvarea, sper sa intelegi!