Equations Solvable for x:
Consider the given differential equation on solving for x is expressible as
x = ƒ(y, p). (i)
differentiating (i) w.r.t. y, we get an equation of the form
Suppose the solution of (ii) is ψ (x, p, c) = 0 (iii)
The needed solution is calculated by wither removing p between (i) and (iii) or expressing (i) and (iii) as
x = g1 (p, c), y = g2 (p, c); p being a parameter.