SOLUTION: Hi , could someone plese explain how to rearrange the following equation 1/y=x-4/x make x the subject . thank you

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Hi , could someone plese explain how to rearrange the following equation 1/y=x-4/x make x the subject . thank you      Log On


   

Question 632373: Hi , could someone plese explain how to rearrange the following equation
1/y=x-4/x make x the subject . thank you
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

1%2Fy=%28x-4%29%2Fx+   |Multiplying thru by x so as all denominators = 1

 x%2Fy+=+x-4

 4+=+x+-+x%2Fy

 4+=+x%281+-+1%2Fy%29

4%2F%281-1%2Fy%29+=+x  |multiplying denominator and numerator by y

4y%2F%28y-1%29+=+x