Solve LaTeX:  \displaystyle \frac{5}{x + 3}=\frac{4}{x - 5} .

The LCD is LaTeX:  \displaystyle \left(x - 5\right) \left(x + 3\right) . Multiplying by the LCD to clear the fractions gives LaTeX:  \displaystyle 5 x - 25 = 4 x + 12 . Isloating LaTeX:  \displaystyle x gives LaTeX:  \displaystyle x = 37 .