dzelkas wrote:

Can someone help me figure this out? I got confused on couple of steps..

x=(yz)/x+1/y

we are asked to find Z

here is the solution where i got confused

x-1/y=yz/x

x^2-x/y^2=z ( i got lost here. it looks like we multiplied by x to get rid of denominator but where did we get y^2 from?

x^2 y/y^2 - x/y^2=z ( again i got lost here)

z= x(xy-1)/y^2

can someone help me understand this little bit better. I would really appreciate it

thanks

danny

1) x-1/y=yz/x

2) get rid of x------->X^2-X/Y=YZ

3) get rid of y------->X^2.Y-X=Y^2.Z

4) devide both sides by Y^2------> (X^2.Y-X)/Y^2=Z

5) take X out of paranthesis-------> X(XY-1)/Y^2=Z, thus z= x(xy-1)/y^2