Solve LaTeX:  \displaystyle \frac{5}{x - 8}=- \frac{6}{x - 4} .

The LCD is LaTeX:  \displaystyle \left(x - 8\right) \left(x - 4\right) . Multiplying by the LCD to clear the fractions gives LaTeX:  \displaystyle 5 x - 20 = 48 - 6 x . Isloating LaTeX:  \displaystyle x gives LaTeX:  \displaystyle x = \frac{68}{11} .