differential equation : from Lagrange to Leibniz notation

Question

I have this differential equation written in a Lagrange way (which I've bee taught):

$x''=a-bx-cx'$

I need to plug this into a computer software that seems to only understand the Leibniz notation.

Is this correct or am I wrong ?

$\frac{d^2x}{dt} = a-bx-c\frac{dx}{dt}$

Thanks

Answer 1

I think you can try $\frac{d^2x}{dt^2}$ instead of $\frac{d^2x}{dt}$.