Respuesta :
A- -6-2=2-6
-4=-4
communicative
B-communicative
19-2=2-19
17=17
communicative
C- -7+-2=-9
closure
-4=-4
communicative
B-communicative
19-2=2-19
17=17
communicative
C- -7+-2=-9
closure
solution:
A- -6+(+2)
[tex] - 6 - 2[/tex]
[tex] = - 4[/tex]
commutative property.
B- 19+(-2)=(-2)+19
[tex] 19 - 2[/tex]
[tex] = 17[/tex]
commutative property.
C- -7+(-2)
[tex] - 7 - 2[/tex]
[tex] = - 9[/tex]
closure property.
