Resposta :
a- -2(3+2-3)+2(-1+3-7)= -6-4+6-2+6-14=-14
b- -4+5-8+11+7+49+7=67
c- +5-15+25-30+14-12+2-6=-17
d- -11-7+8-13-5-3-16+18=-29
e- -12+6-4-8-16-40-8+3-6=-85
b- -4+5-8+11+7+49+7=67
c- +5-15+25-30+14-12+2-6=-17
d- -11-7+8-13-5-3-16+18=-29
e- -12+6-4-8-16-40-8+3-6=-85