Question

{[5 + 2 - (9 +7) + (3 + 4)]}

Answer 1

Explicación paso a paso:

$| 5 + 2 - (9 + 7) + (3 + 4) |$

$5 + 2 - 9 - 7 + 3 + 4 \\ \\ - 9 - 7 + 5 + 2 + 3 + 4 \\ \\ - 16 + 14 \\ \\ = = - 2$