Applying the property of exponents, $\displaystyle a^{-n}=\frac{1}{a^n}$, where $n$ is a number

Apply the formula: $\int\frac{n}{x+b}dx$$=nsign\left(x\right)\ln\left(x+b\right)+C$, where $b=5$ and $n=1$

As the integral that we are solving is an indefinite integral, when we finish integrating we must add the constant of integration $C$