Question

me ajudem a fazer essa conta por favoor

32÷2{2×[-3+15÷(-7+10)]}-[5×(-4)+9÷(-3)]

a)-66
b) 31
c) -15
d) 20
e) nenhuma das anteriores
​

Answer 1

$32\div2\left\{2\times[-3+15\div(-7+10)]\right\}-[5\times(-4)+9\div(-3)]$

$16\left\{2\times[-3+15\div(+3)]\right\}-[5\times(-4)+9\div(-3)]$

$16\left\{2\times[-3+5]\right\}-[-20-3]$

$16\left\{2\times2\right\}+23$

$16\times4+23$

$\bf{64+23=87}$