Explicación paso a paso:
a)12
6+6=12
8+4=12
b)-5
1+(-6)= 1-6= -5
-8+3= -5
c) -22
(-9)+(-13)=-9-13= -22
2+(-24)=2-24= -22
d) -30
(-15)+(-15)= -30
(-21)+(-9)=-21-9= -30
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Explicación paso a paso:
a)12
6+6=12
8+4=12
b)-5
1+(-6)= 1-6= -5
-8+3= -5
c) -22
(-9)+(-13)=-9-13= -22
2+(-24)=2-24= -22
d) -30
(-15)+(-15)= -30
(-21)+(-9)=-21-9= -30