Question 372115
  <pre><font size = 3 color = "indigo"><b>
Hi,
Solve for y: 
1/x = 2/y + 1/z  Multiplying each term by xyz so as all denominators = 1
yz = 2xz + xy
-2xz = xy - yz
-2xz = y(x-z) 
{{{highlight(-2xz/(x-z) = y)}}}