7 + (n-5) = 8 equals n = 6.
First, simplify brackets. Your problem should look like: 7 + n - 5 = 8.
Second, simplify 7 + n - 5 to n + 2. Your problem should look like: n + 2 = 8.
Third, subtract 2 from both sides. Your problem should look like: n = 8 - 2.
Fourth, simplify 8 - 2 to 6. Your problem should look like: n = 6, which is the answer.