Answer:
a) (-17) + (+17)= -17+17=0
b) (-89) + (+130) = -89+130=41
c) (120) + (-85) - (-90)=120-85+90=125
I hope my answer helps you ☺☺
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Answer:
a) (-17) + (+17)= -17+17=0
b) (-89) + (+130) = -89+130=41
c) (120) + (-85) - (-90)=120-85+90=125
I hope my answer helps you ☺☺