- 4 + 2{ - 2[ - 1 + 2( - 3) + 1] - 2} - 5?

Respuesta : <img src="https://tex.z-dn.net/?f=%3D3" />Explicación paso a paso : <img src="https://tex.z-dn.net/?f=-4%2B2%7B-2%5B-1%2B2%28-3%29%2B1%5D-2%7D-5%5C%5C%5C%5C%5Cmathrm%7BCalcular%5C%3Ala%5C%3Aexpresion%5C%3Aentre%5C%3Aparentesis%7D%5C%3A%5Cleft%5B-1%2B2%5Cleft%28-3%5Cright%29%2B1%5Cright%5D%5C%3A%3A%5Cquad%20-6%5C%5C%5C%5C%3D-4%2B2-2%5Cleft%28-6%5Cright%29-2-5%5C%5C%5C%5C%5Cmathrm%7BMultiplicar%5C%3Ay%5C%3Adividir%5C%3A%5Cleft%28de%5C%3Aizquierda%5C%3Aa%5C%3Aderecha%5Cright%29%7D%5C%3A2%5Cleft%28-6%5Cright%29%5C%3A%3A%5Cquad%20-12%5C%5C%5C%5C%3D-4%2B2-%5Cleft%28-12%5Cright%29-2-5%5C%5C%5C%5C%5Cmathrm%7BSumar%5C%3Ay%5C%3Arestar%5C%3A%5Cleft%28de%5C%3Aizquierda%5C%3Aa%5C%3Aderecha%5Cright%29%7D%5C%3A-4%2B2-%5Cleft%28-12%5Cright%29-2-5%5C%3A%3A%5Cquad%203%5C%5C%5C%5C%3D3" />.