Submit a question to our community and get an answer from real people.

5/x + 4/y =8. What are the values of x and y. Not sure how to get them separate in order to find each value.

Report as

1). Find x
5/x + 4/y = 8.
xy( 5/x + 4/y ) = 8xy
5y + 4x = 8xy
5y = 8xy - 4x
5y = x(8y -4)
5y/(8y-4) = x. ANSWER 1
2). Find y
5/x + 4/y = 8
xy( 5/x + 4/y ) = 8xy
5y + 4x = 8xy
4x = 8xy - 5y
4x = y(8x - 5)
4x/(8x-5). = y. ANSWER 2

Helpful Fun Thanks for voting Comments (3)
Report as
So I plug in either the x or the y into the origianl equation. How do I get the fraction on the bottom of a fraction a LCD?
Report as
Will you ask this again and give me an example of what you mean? Reask it so other people can see it too.
Report as
I was able to solve it. I had to solve it at the same time with another equation. Thank you for your input.
Report as
Add a comment...
Do you have an answer?
Answer this question...
Did you mean?
Login or Join the Community to answer