Question

Elimine os parênteses
a)+ (-3+8) =
b) - (-3+8) =
c) + (5-6) =
d) - (-3-1) =
e) - (-6+4-1) =
f) -6- (-3+2) =
g) 18- (-5-2-3) =

Answer 1

(a) -3+8= +5
(b) +3-8= -5
(c) +5-6= -1
(d) +3+1= +4
(e) +6-4+1= +3
(f) -6+3-2= -5
(g) +18+5+2+3= 28