a/(b-x)=c; solve for x

[Azusa1]

Can you help? I had this question on a test, and all the answers I got didn't match the multiple choice... So, I remembered the question so that I could figure out how to do it. Thanks

a/(b-x)=c
((a divided by b minus x equals c))
solve for x.

 

[galactus]

Flip them both over, then give it a go. Yes, you can do that.

\(\displaystyle \frac{b-x}{a}=\frac{1}{c}\)

Now solve for x. Easier, huh?.

 

[Deleted member 4993]

Can you help? I had this question on a test, and all the answers I got didn't match the multiple choice... So, I remembered the question so that I could figure out how to do it. Thanks

a/(b-x)=c
((a divided by b minus x equals c))
solve for x.

I would multiply both sides by (b-x).

Then divide both sides by 'c' - to isolate 'x'.

then subtract 'b' from both sides to isolate 'x' further.