Resolver los siguientes ejercicios de suma y resta?

Respuesta : <img src="https://tex.z-dn.net/?f=%3D-32" />Explicación paso a paso : <img src="https://tex.z-dn.net/?f=3%28-4%20%29%20%2B%202%20%28%20-2%20%29%20%28%20-1%20%29%20-%28%20-3%20%29%20%28%20-5%20%29%20%28%20-1%20%29%20%28%20-2%29%20-2%20%28-3%29%5C%5C%5C%5C%5Cmathrm%7BSeguir%5C%3Ael%5C%3Aorden%5C%3APEMDAS%5C%3Ade%5C%3Alas%5C%3Aoperaciones%7D%5C%5C%5C%5C%5Cmathrm%7BMultiplicar%5C%3Ay%5C%3Adividir%5C%3A%5Cleft%28de%5C%3Aizquierda%5C%3Aa%5C%3Aderecha%5Cright%29%7D%5C%3A3%5Cleft%28-4%5Cright%29%5C%3A%3A%5Cquad%20-12%5C%5C%5C%5C%3D-12%2B2%5Cleft%28-2%5Cright%29%5Cleft%28-1%5Cright%29-%5Cleft%28-3%5Cright%29%5Cleft%28-5%5Cright%29%5Cleft%28-1%5Cright%29%5Cleft%28-2%5Cright%29-2%5Cleft%28-3%5Cright%29%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%28-2%5Cright%29%5Cleft%28-1%5Cright%29%5C%3A%3A%5Cquad%20-4%5C%5C%5C%5C" /><img src="https://tex.z-dn.net/?f=%3D-12-%5Cleft%28-4%5Cright%29-%5Cleft%28-3%5Cright%29%5Cleft%28-5%5Cright%29%5Cleft%28-1%5Cright%29%5Cleft%28-2%5Cright%29-2%5Cleft%28-3%5Cright%29%5C%5C%5C%5C%5Cmathrm%7BMultiplicar%5C%3Ay%5C%3Adividir%5C%3A%5Cleft%28de%5C%3Aizquierda%5C%3Aa%5C%3Aderecha%5Cright%29%7D%5C%3A%5Cleft%28-3%5Cright%29%5Cleft%28-5%5Cright%29%5Cleft%28-1%5Cright%29%5Cleft%28-2%5Cright%29%5C%3A%3A%5Cquad%2030%5C%5C%5C%5C%3D-12-%5Cleft%28-4%5Cright%29-30-2%5Cleft%28-3%5Cright%29%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%28-3%5Cright%29%5C%3A%3A%5Cquad%20-6%5C%5C%5C%5C%3D-12-%5Cleft%28-4%5Cright%29-30-%5Cleft%28-6%5Cright%29%5C%5C%5C%5C" /><img src="https://tex.z-dn.net/?f=%5Cmathrm%7BSumar%5C%3Ay%5C%3Arestar%5C%3A%5Cleft%28de%5C%3Aizquierda%5C%3Aa%5C%3Aderecha%5Cright%29%7D%5C%3A-12-%5Cleft%28-4%5Cright%29-30-%5Cleft%28-6%5Cright%29%5C%3A%3A%5Cquad%20-32%5C%5C%5C%5C%3D-32" />.