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Wiki User
It is: -15+71 = 56
71 plus 23 plus 49 is equal to 143.
71 + 15 = 86
56 + 15 = 71
71
25 plus 52 plus 15 is equal to 92.
37
If 52 + y = 71 = then y MUST equal 19 !
-71
Yes, 15 + 15 = 30
-17.
139