Question

Rearrange this equation to isolate c

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

Answer 1

The formula is:
\[a=b\left(\frac{1}{c}-\frac{1}{d}\right)\] Right?

Answer 2

Yes

Answer 3

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Answer 4

Okay. so: you have:
\[\eqalign{
&1.\phantom{space}a=b\left(\frac{1}{c}-\frac{1}{d}\right) \\
&2.\phantom{space}\frac{a}{b}=\frac{1}{c}-\frac{1}{d} \\
&3.\phantom{space}\frac{a}{b}+\frac{1}{d}=\frac{1}{c} \\
&4.\phantom{space}c\left(\frac{a}{b}+\frac{1}{d}\right)=1 \\
&5.\phantom{space}c=\frac{1}{\frac{a}{b}+\frac{1}{d}} \\
}\]
Cool? If there was something you didn't understand, I took the liberty of numbering each step :-D