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It is: -73--27 = -46 because a double minus becomes a plus and --27 is the same as +27
13.5 x 2 = 27
2x + 9 = 27 2x = 18 x = 9
The Roman numeral XXVII represents the number 27 because X equals to 10 and if you put XX you double 10 which makes 20. For V it equals to 5 and I equals to 1 , when you double it, it makes 2.
27 doubles and 8 triples