Two variables

mesayre

New member
Joined
Oct 3, 2010
Messages
2
Hi all,

It's been a couple of years since I've had to solve a problem like this, so I just need a little help simplifying this equation.

f(x,y) = .02x + .1xy

The equation represents sales comissions. For a given level of gross sales (x), a person earns 2% of that plus 10% of the profit on the gross sales (y). I'd like to reverse the equation so that given an input of the commission desired (f(x,y)) and the estimated profit margin (y), I can figure out what the gross sales need to be. This would go into an excel formula.

Basically, I need to solve for x. This could be done with either algebra or calc, if memory serves. But I can't remember how to do it.

Thanks for your help!
Mike
 
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