Question

atividade de Matemática​

Answer 1

Resposta:

$2(x - 9) > 22 \\ \\ 2x - 2 \times 9 > 22 \\ \\ 2x - 18 > 22 \\ \\ 2x > 22 + 18 \\ \\ 2x > 40 \\ \\ x = \dfrac{40}{2} \\ \\ \Large \boxed{ \green{x = \bf20}}$

$\dfrac{3x}{2} + \dfrac{8}{3} < \dfrac{x}{6} \\ \\ \frac{3 \times 3x + 2 \times 8 < 1 \times x}{6} \\ \\ 9x + 16 < x \\ \\ 9x - x < - 16 \\ \\ 8x < - 16 \\ \\ x < - \dfrac{16}{8} \\ \\ \Large \boxed{ \green{x \bf < - 2}} \\ \\ \Large \boxed{ \blue{ \underline{\bf \: Bons \: Estudos!}}}$