Respuesta:
+ ( +4) - (+7) = +3
( -5) - ( -3 ) =-2
+ (+2)-(+2) = -4
+(-9)+(-5)= +4
Explicación paso a paso:
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Verified answer
Respuesta:
+ ( +4) - (+7) = +3
( -5) - ( -3 ) =-2
+ (+2)-(+2) = -4
+(-9)+(-5)= +4
Explicación paso a paso: