# Math Help - First Order Differential Equations

1. ## First Order Differential Equations

2. Originally Posted by r_maths
this is a separable equation as well

$\frac {dy}{dx} = \frac yx \implies \frac {dy}y = \frac {dx}x$ ...........multiply both sides by $\frac {dx}y$

3. Is dy/y the same as 1/y ?

4. Originally Posted by r_maths
Is dy/y the same as 1/y ?
what do you mean? no, $\frac {dy}y = \frac 1ydy$

then you integrate both sides