Answer:
x = 8.
Step-by-step explanation:
ln(x - 7) = ln8 - lnx Using the laws of logarithms:
ln(x - 7) = ln (8/x)
x - 7 = 8/x
x^2 - 7x = 8
x^2 - 7x - 8 = 0
(x - 8)(x + 1) = 0
x = -1, 8.
x must be 8 as there is no real value of the log of a negative.
