Chapter 1 - First-Order Differential Equations - 1.6 First-Order Linear Differential Equations - True-False Review - Page 59: e

False.

The first order linear equation must be in the form of $y'+p(x)y=q(x)$, therefore, the equation is rewritten as $y'+\frac{y}{x}=x$. This means that $p(x)=\frac{1}{x}$. The integrating factor is equal to $e^{\int p(x)dx}$, which is $e^{\int \frac{dx}{x}}=e^{ln(x)}=x$. This doesn't match the integrating factor of $I(x)=x+5$.