Okay I feel dumb asking this, I should know this, but it's been so long since I've bothered to use any algebra I've completely forgotten how it would be done.
Consider this equation.
a = b / (b + c)
Pretend we have a value for a and c, how would you rearrange this to find b? It being on both the top and bottom of the division is what's confusing me.
I did this but I know it's completely wrong:
a * c = b /b
but that would mean
a * c = 1
Can somebody point out what I'm doing wrong?