It is: -73--27 = -46 because a double minus becomes a plus and --27 is the same as +27
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The difference is 46
46
The number one rule is "what you do to one side, you must do to the other". So to demonstrate in detail: e - (-73) = -27 e - (-73) + 73 = -27 + 73 e = 46
27/73 is in its simplest form.
They are all perfect cubes. 8 = 23, 27 = 33, 343 = 73, 64 = 43 and 125 = 53.