(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

But somehow not that simple..

[tex]\frac{5xy}{x+y}[/tex] [tex]=6\left.[/tex]

[tex]\frac{7yz}{y+z}[/tex] [tex]=10\left.[/tex]

[tex]\frac{8zx}{z+x}[/tex] [tex]=15\left.[/tex]

2. Relevant equations

3. The attempt at a solution

Tried and failed.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Three Equations, Three Unknowns.

**Physics Forums | Science Articles, Homework Help, Discussion**