- A1
- B2
- C-1
- D0
Step-by-Step Solution
From a + a = a, subtract a from both sides: a = 0. Zero is the only integer that satisfies this (it is the additive identity).
Answer: D) 0
An integer a satisfies a + a = a.
Using properties of integers, which integer must a be?
Class 7Properties of IntegersIntegers
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