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The expression is 4 + 0 = n \ \
\Additive identity: For any number a, the sum of a and 0 is a. i.e. a + 0 = a.
\n = 4, Since 4 + 0 = n. The property used is the Additive identity.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The value of n is 4.
\The property used is the Additive identity.
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