First note that voting here is secret and that no [down]voter is obliged to explain themselves; pestering them to do so will likely attract more downvotes though.
Your question essentially says "I connect A to B and B to C, how exactly will C influence A?". Keep in mind that we are an engineering site here, and don't do philosophical fuzzyness. If we did, the answer to your question would be "The more you do stuff that influences A on C, the more you will influence A with it".
Your question is not so much unclear in that we don't know what you want to know, but in that you provide absolutely no detail for us to be able to answer it. Going into your realm of mathematics, you could ask "I have a function with variables a, b and c, what are its zeros?". The only valid answer would clearly be a book outlining all possible ways to determine a zero of a function with three variables. And boy would that book be big...
We don't do that in engineering. Besides that we especially don't do that on this site, since we only have 30k characters for an answer. In engineering we answer practical answerable questions that involve actual things, parameters, procedures.
One could argue that we could answer with endless descriptions of what kind of actions do or don't do and to what extend and in what situation and with what involved power supplies etc. do, but we don't do that here either, it would be open ended and leads to nothing.
Thus, your question was not only closed for being unclear what you do exactly, valid close reasons involved also too broad, and if it existed the lack of prior research (or evidence thereof). But it is sufficient for the system to only chose one.
Ask again here if you know what kind of power supply you have and what the nature of the current draw on it is, and when you have sorted out the basics about things like voltage drop etc.