Solve the equation LaTeX:  \displaystyle \log_{7}(x + 16792)-\log_{7}(x + 34)=3 .

Using the quotient property of logarithms gives LaTeX:  \displaystyle \log_{7}\frac{x + 16792}{x + 34} = 3 . Making both sides of the equation exponents on the base LaTeX:  \displaystyle 7 gives LaTeX:  \displaystyle \frac{x + 16792}{x + 34}=343 . Clearing the fractions by multiplying by the LCD gives LaTeX:  \displaystyle x + 16792=343 x + 11662 . Isolating LaTeX:  \displaystyle x gives LaTeX:  \displaystyle x = 15 .