It's a simple formulation for asking the question.

The following simple formulation makes the assumption of slow speeds such that drag and viscosity are not significant.

Simply talking about a "designer", gives the following, simple formulation.

In the simplest formulation, innovation can be thought of as being composed of research, development, demonstration, and deployment.

All at once, McCoy understood an even simpler formulation of his predicament.

This extremely simple formulation, used for the purposes of discussion assumes:

Many of the keyboard compositions were simple two-part formulations with the left hand playing the lesser role.

Another simple formulation of the third law can be:

His arguments for rejecting the simple formulations of radical liberalism did indeed have conservative implications, emphasizing limits more than possibilities.