Question

quanto é {8-[(-3+8).(-1)-15]}÷(-2)?​

Answer 1

$\left\{8-\left[\left(-3+8\right)\left(-1\right)-15\right]\right\}\div \left(-2\right)\\\\8-\left[\left(-3+8\right)\left(-1\right)-15\right]\\\\=8-\left(-20\right)\\-\left(-20\right)=+20\\\\=8+20\\\\=28\\\\=28\div \left(-2\right)\\\\28\div \left(-2\right)=-28\div \:2=-14\\\\=-14$

Answer 2

Resposta:

-14

Explicação passo-a-passo:

{8-[(-3+8).(-1)-15]}÷(-2) =

{8-[5.(-1)-15]}÷(-2) =

{8-[-5-15]}÷(-2) =

{8-[-20]}÷(-2) =

{8+20}÷(-2) =

{28}÷(-2) =

$\frac{28}{-2}=$

-14