Answer:
The result of the problem is n+15.
Explanation:
1. Rearrange the terms
8+(7+n)=
=8+(n+7)=
2. Eliminate redundant parentheses
8+(n+7)=
=8+n+7=
3. Add the numbers
8+n+7=
=15+n=
4. Rearrange terms
15+n=
=n+15=
n+15
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