46
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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
It is: -73--27 = -46 because a double minus becomes a plus and --27 is the same as +27
65
B=61
s = negative 73 (-73)