Question

conjunto solucao da inequacao 3x + 7≥8x-5 e dado por
por favor me ajudem

Answer 1

$\mathsf{3x+7 \geq 8x-5}\\\\ \mathsf{3x-8x \geq -5-7}\\\\ \mathsf{-5x \geq -12}\\\\ \mathsf{5x \leq 12}\\\\ \mathsf{x \leq \dfrac{12}{5}}\\\\\\ \mathsf{S=\left\{\ x \in \mathbb{R}\ | \ x \leq \dfrac{12}{5}\ \right\} }$