Here's a question on my GMAT study book that I really don't know how to figure out...
Could someone show me HOW to work this out? And/Or the most effective way to figure it out?
if --- + --- = 4 and xy = 5, then 3x + 2y = ?
crap, the formatting isn't there...
if (2/x) + (3/y) = 4 and xy = 5, then 3x + 2y