How does one find the number of integral solutions of equations like,
$2x + 5y + 4z = 20$
I know how to do this counting if the coefficient of every variable on the LHS is $1$. But I don't know how to do this counting with arbitrary coefficients.
How does one find the number of integral solutions of equations like,
$2x + 5y + 4z = 20$
I know how to do this counting if the coefficient of every variable on the LHS is $1$. But I don't know how to do this counting with arbitrary coefficients.