Rewriting a formula (hopefully just basic algebra..)

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I have a question which actually involves statistics, but I think it comes down to some basic algebra, so hopefully someone here can help me out (as I am obviously not a mathematician).

Let’s say I have a formula in the following form:

                        A = (B/C)(D-E) or A=(4/2)(D-3), 

as A and D can vary and B,C and E are actually fixed values. From this I want to rewrite the right-hand side of the formula so that I end up with D in a form were I multiply it with B (or B/C), without having to subtract something from D or divide it first. So something like:

                        A = (B/C)(D)-.... or A=(4/2)(D)-....

However, I have been struggling in finding out how to do this, so I hope someone can provide me a solution for this.

Many thanks!