Question

Rearrange this equation to isolate c

a=b(1/c - 1/d)

Answer 1

Write it out and do what you can first.

Answer 2

I have a=(b/c-b/d)

Answer 3

Good, now we have:
\[a=\frac{b}{c}-\frac{b}{d}\]
Since we need to get c, we need to move all other unnecessary expressions. How do we get rid of that b/d?