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Two integers have opposite signs.
The positive integer is 12 and their sum is -3.
What is the negative integer?

Class 6Addition of IntegersIntegers

A-16
B-15
C-30
D-14

Step-by-Step Solution

12 + x = - 3

, so

x = - 3 + (- 12) = - 15

. Check:

12 + (- 15) = - 3

, which is negative as expected.

Answer: B) -15

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