Question

ajudem pfvor!
-4(x+3)maior que 2 (x-3)

Answer 1

$-4(x+3)\ \textgreater \ 2(x-3)\to \\\\ -4x-12\ \textgreater \ 2x-6\to \\\\ -4x-2x\ \textgreater \ -6+12\to \\\\ -6x\ \textgreater \ 6(-1)\to \\\\ 6x\ \textless \ -6\to \\\\ x\ \textless \ - \frac{6}{6} \to \\\\ x\ \textless \ -1\\\\\\\\ S=\{xER|~x\ \textless \ -1\}$