1) determine o valor de

a) |-1|=
b) |+5|=
c) |-10|=
d) |7|=
e) |6|=
f) |0|=

2) agora elimine os parênteses deste expressões

a) -(+8)=
b) -(-a)=
c) +(-x)=
d) +(+x)=
e) -(-x)=

me ajuda pela amor de deus ​
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