dipetersen wrote:x=(a+b+c)/ab solve for a
I say it can't be solved. Am I wrong?
Sorry, but yes. This can be solved; it just requires a "trick". You can learn about that trick in this lesson
. (Scroll down about two-thirds of the way, to the example showing "Solve Q = 3a + 5ac for a". You'll need to cross-multiply in your equation first, to get rid of the denominator.)