Solve the Equation $\log ( x - 50 ) - \log 9 = \log ( x - 30 ) - \log x$

Multiple Choice

Solve the equation. $\log ( x - 50 ) - \log 9 = \log ( x - 30 ) - \log x$

A) $\quad x = 5$
B) $x = 58$
C) $x = 54$
D) $x = 56$
E) none of these