I know that the friction coefficients used when calculating resistance or pressure loss (or major loss) in ducts, tubes or pipes can be calculated with the Colebrook equation. and The Colebrook equation is generic and can be used to calculate friction coefficients for different kinds of fluid flows - like air ventilation ducts, pipes and tubes with water or oil, compressed air and much more and also The Colebrook equation is only valid at turbulent flow conditions.

What are the steps to solve this equation? when we have one inlet and more than 10 outlet of air.