Explanation:
The expression S + RV/L + 72 3.3.1 is not clear and lacks context, making it difficult to provide a specific reason why WV - VR. However, in general, the order of subtraction can impact the result of the equation.
For example, if we have two variables, A and B, and we subtract them in one order, we get one result, and if we subtract them in the opposite order, we get a different result. This is because subtraction is not commutative, which means that the order in which we subtract the numbers matters.
Without further information about the specific variables in the expression S + RV/L + 72 3.3.1, it is not possible to give a definitive reason why WV - VR. However, it is possible that the order of subtraction is important in this context and that switching the order would produce a different result.