Anonymous

# can someone help me with this algebra?

solve for F

k=(pf) / (f+pt) what is f =

Thanks

### 2 Answers

Relevance

- 1 decade agoFavorite Answer
First step is to multiply both sides by (f+pt) to get: k(f+pt)=pf

Next you want to multiply k to get: kf+kpt=pf

Then you want to get all terms with f to one side by subtracting both sides by kf to get: kpt=pf-kf

Now factor out f from the two terms on the right to get: kpt=f(p-k)

Finally divide both sides by (p-k) to get your final answer of...

f=kpt/(p-k)

- MoonRoseLv 71 decade ago
k = pf/(f + pt) (multiply both sides by (f + pt))

k(f + pt) = pf (distribute k)

kf + kpt = pf (subtract kf from both sides)

kpt = pf - kf (factor out f on right side)

kpt = f(p - k) (divide both sides by (p - k))

kpt/(p - k) = f

f = kpt/(p - k) <===ANSWER

Still have questions? Get your answers by asking now.