Maybe this:

=IF(A1+B16,A1+B1,"")

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Biff
Microsoft Excel MVP


"nkonfya" wrote in message
...
I need to figure out how to solve the following situation:

A B C
1 4
2 5 f(7)
3 6 f(9)

If Ax+Bx6 then plug that number into a function desgnated for column C.
How
do I set this up?