0
Anonymous
100
Mohammad Gaylord ∙
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The sum of 89 and -11 is 78... If you are adding a negative number to a positive, you are effectively subtracting it.
Wiki User
70 + 19 = 89 or: the sum of 70 and 19 is 89
89 + x = x +89
122
11 * 89 = 979
The sum of 11 and 11 is 22.