Copyright © University of Cambridge. All rights reserved.

'Overturning Fracsum' printed from http://nrich.maths.org/

Show menu


Solve the following system of equations to find the values of $x$, $y$ and $z$. $${xy\over (x+y)}=1/2$$ $${yz\over (y+z)} =1/3$$ $${xz\over (x+z)} = 1/7$$