I believe applying simple algebra to this type of problem does not make sense at all. We are talking about non-numerical values for A, B, C.
A is smallest value as defined by the present condition, which is not a goal.
B is hugely larger than A and of similar measuring unit as A
C is a different unit, since it a goal, not a condition like A and B. C is like "work" as it entails movement.
So no maths-like equation can be drawn to relate A, B and C. It is like you want to get from house A to house B, which are 5 miles apart. So you need 1/4 gallon of gas to drive there by car: C can be the gas. No junior high school teacher would pass you if you wrote:
A - C = B or any other equation written above.
Maybe people who do not know maths should stick to concepts based on philosophy, psychology, personal development, etc.
