F=S=A Format

F=S=A is Formula=Substitution=Answer.  Here is an example of it by finding Density.
The mass of the object is 8, and the volume is 16
First right the formula  D=M/V. 
Next substitute in the formula   D=8/16
Next find the answer  D=1/2

Personally, I like F=S=A format.  I like it because it helps you organize things.  It gives you a less chance for error.  Well at least for me.  I am also used to using F=S=A format because we use it in math classes as well.