Question

-(-(-(-1+2) - 3) – 4) =​

Answer 1

Hola!!

$-\left(-\left(-\left(-1+2\right)-3\right)-4\right)\\\\-\left(-\left(-1+2\right)-3\right)-4\\\\-\left(-1+2\right)-3\\\\=-1-3\\\\=-4\\\\=-\left(-4\right)-4\\\\=4-4\\\\=0$