Question

-3/7x(-5/14+3/2) resolva pra mim esse cálculo

Answer 1

- 3 .(- 5 + 3) 
  7    14    2



- 3 .(- 5 + 21) 
  7       14
 
 -3(+7 )  ==>  - 3
  7  14             14

Answer 2

Olá, bom dia ☺

Resolução:

$\\- \dfrac{3}{7}\cdot \left ( - \dfrac{5}{14}+ \dfrac{3}{2} \right ) \\ \\- \dfrac{3}{7}\cdot \left ( \dfrac{-5+21}{14} \right ) \\ \\ -\dfrac{3}{7}\cdot \dfrac{16}{14} \\ \\ -\dfrac{48}{98} \\ \\ = -\dfrac{24}{49}$

Bons estudos :)