Posted by **Mike** on Monday, July 11, 2011 at 10:32pm.

I need help with rearranging this equation to isolate c

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

I got this (a/b)+(1/d)=(1/c) but I don't know the last step with the reciprocal. Could someone please help, thank you

- math -
**Max**, Monday, July 11, 2011 at 10:41pm
First, write a/b + 1/d with a common denominator.

ad/bd + b/bd

(ad + b)/bd

You can easily take the reciprocal from here.

- math -
**Mike**, Monday, July 11, 2011 at 10:44pm
the computer said my answer was correct like this (a/b)+(1/d)=(1/c) but I need to do the reciprocal of (1/c) and I don't know how that will look in the equation

- math -
**Max**, Monday, July 11, 2011 at 10:50pm
Here is how the equation should look:

a/b + 1/d = 1/c

ad/bd + b/bd = 1/c

(ad + b)/bd = 1/c

Taking the reciprocal of both sides...

bd/(ad + b) = c

- math -
**Mike**, Monday, July 11, 2011 at 10:52pm
thank you. It worked

- math -
**Max**, Monday, July 11, 2011 at 10:54pm
You're welcome.

## Answer This Question

## Related Questions

- chemistry - how many carbon particles are there in 4.25 mole of C6 H12 O6? i do ...
- math - find the slope and y-intercept of the graph of the equation. explain each...
- Pre Calculus 12 - Solving problems that involve logarithms the sound at a rock ...
- Calculus questions..really need help, please! - 1) Find the value of the lim(x-&...
- algebra 2 - A. I need to write an equation to the linear equation..(-2,-2), (3,3...
- Pre Calculus 12 - Graphing trigonometric functions A sinusoidal function has a ...
- math plz help ;-; - What is the equation of the line containing the two points...
- Algebra - I need to write an equation for when the slope is 5/3 and the y-...
- math - a rectangle is to be inscribed under the arch of the curve y = 2cosx from...
- algebra - Will someone please look over these? I am so lost on these. 1. find ...

More Related Questions