Assume some value for this x, and then enter this cell as 'by changing
cell'. Your equation cell should be the target cell.

- Mangesh


"nj125" wrote in message
...
I have a complex equation that is equal to zero with just one unknown that
I
have entered as "x". I need to know how to use solver to solve for the
unknown variable. How do I do this? It seems like it should be simple, but
I'm not sure how to enter the unknown into the equation. I keep getting
the
error, "Invalid target cell." Which makes me think that I should enter the
unknown into a different cell, or something else. Please help!!!