Verify the following : [7+(-8)]+(-5) = 7+[(-8)]+(-5)]
Match the items on the right to the items on the left.
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[7+(-8)]+(-5) = 7 + (-13)
[7+(-8)]+(-5) = 7 -13 = -6
7+[(-8)]+(-5)] = (-1) + (-5)
7+[(-8)]+(-5)] = -6
Hence, [7+(-8)]+(-5) = 7+[(-8)]+(-5)]