Are the following equal?
(1) (-8) + (- 9) and (-9) + (-8)
(ii) (-23) + 32 and 32 + (-23)
Ti) (-45) + 0 and 0 + (-45)
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Answer:
1) Yes
(-8) + (- 9) = (-9) + (-8)
-9 - 8 = -9 - 8
-17 = -17
2) Yes
(-23) + 32 = 32 + (-23)
-23 + 32 = 32 - 23
9 = 9
3) Yes
(-45) + 0 = 0 + (-45)
-45 = -45
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