Question

1/n-8 - 1 = 7/n-8

Answer 1

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Answer 2

\[\frac{1}{n-8} - 1 = \frac{7}{n-8}\]

Multiply both sides by n - 8 to get:
1 - (n - 8) = 7
1 - n + 8 = 7
1 + 8 - n = 7
1 + 8 - 7 = n
1 + 1 = n
2 = n