Question

Rezolva 2(3x-7)<10
7-x>2

Answer 1

$\displaystyle a).2(3x-7)\ \textless \ 10 \\ 6x-14\ \textless \ 10 \\ 6x\ \textless \ 10+14 \\ 6x\ \textless \ 24 \\ x\ \textless \ \frac{24}{6} \\ x\ \textless \ 4 \\ b).7-x\ \textgreater \ 2 \\ -x\ \textgreater \ 2-7 \\ -x\ \textgreater \ -5 \\ x\ \textless \ 5$

Answer 2

cam asa, se rezolva astfel de exerciti