Question

atividade de Matemática​

Answer 1

Resposta:

$15x - 1 \leqslant 17x + 3 \\ \\ - 1 - 3 \leqslant 17x - 15x \\ \\ - 4 \leqslant 2x \\ \\ 2x \geqslant - 4 \\ \\ x \geqslant - \dfrac{4}{2} \\ \\ \Large \boxed{ \green{x = \bf - 2}}$

$\dfrac{5x}{2} + \dfrac{4}{5} > 2 \\ \\ \dfrac{5 \times 5x + 2 \times 4 > 10 \times 2}{10} \\ \\ 25x + 8 > 20 \\ \\ 25x > 20 - 8 \\ \\ 25x > 12 \\ \\ \Large\boxed{ \green{x > \bf\dfrac{12}{25} }} \\ \\ \Large\boxed{ \blue{ \underline{ \bf\: Bons \: Estudos!}}}$