1. The problem statement, all variables and given/known data Solve for y using the substitution: z = 1/(y^5) dy/dx + y/x = (y^6)(x^3) 2. Relevant equations (dz/dx) = (dz/dy) x (dy/dx) 3. The attempt at a solution I formed an equation for dz/dx but cannot separate the variables in order to integrate. Can someone tell me where I've gone wrong please.