Question

eliminando parenteses caucule as somas algebricas

a  5+(-8+13)
b  -6-(3-12)
c  12+(-1+5)-(2-7)
d  36-(19-8+27)
e  (4-10)-(10-4)-(4-10)
f  -(1-7)+2-(-3-8+12)
g  2-(-1-5+8)+(7-3)-4

Answer 1

a  5+(-8+13) = 5+5 = 10
b  -6-(3-12) = -6 +9=3
c  12+(-1+5)-(2-7)= 12+4+5=21
d  36-(19-8+27)=36-38= - 2
e  (4-10)-(10-4)-(4-10) = -4-6+6 = - 4
f  -(1-7)+2-(-3-8+12)= +6+2-1= 7
g  2-(-1-5+8)+(7-3)-4= 2-2+4-4 = 0