1) 7+{(-7)x[-7+(-7)x(-2)x(+3)]-(-7)}=
=7+{(-7)x[-7+14x3]+7)}=
=7+{(-7)x[-7+42]+7)}=
=7+(-7)x35+7=
=14+(-7)x35=
=14-245=
=231
2) {-10-[-5-(-8+3)-11-(+7)]x(-8)}x[(-3)x(+8)-12]=
= {-10-[-5-(-5)-11-7)]x(-8)}x[(-24)-12]=
= [-10-(-5+5-11-7)x(-8)]x(-36)=
= [-10-(-18)x(-8)]x(-36)=
= (-10-144)x(-36)=
=-154x(-36)=5616